emissions of air pollutants, annual growth rate in Algeria
Algeria: emissions of air pollutants, annual growth rate was -0.7883 % change on previous year in 2022. ◆ Volatile
emissions of air pollutants, annual growth rate in Algeria, 1751–2022
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2022, emissions of air pollutants, annual growth rate in Algeria stood at -0.7883 % change on previous year.
The figure is up 89.2% on the previous year and down 106.6% over ten years.
Over the whole period, emissions of air pollutants, annual growth rate in Algeria peaked at 32.4 % change on previous year in 1966 and was at its lowest, -15.09 % change on previous year, in 1964.
That places Algeria 150th out of 219 countries with data for 2022, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
emissions of air pollutants, annual growth rate in Algeria, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1751 | 0.3296 % change on previous year | — |
| 1752 | 0.3283 % change on previous year | -0.4% |
| 1753 | 0.3269 % change on previous year | -0.4% |
| 1754 | 0.3257 % change on previous year | -0.4% |
| 1755 | 0.3244 % change on previous year | -0.4% |
| 1756 | 0.323 % change on previous year | -0.4% |
| 1757 | 0.3217 % change on previous year | -0.4% |
| 1758 | 0.3205 % change on previous year | -0.4% |
| 1759 | 0.3192 % change on previous year | -0.4% |
| 1760 | 0.3179 % change on previous year | -0.4% |
| 1761 | 0.3132 % change on previous year | -1.5% |
| 1762 | 0.312 % change on previous year | -0.4% |
| 1763 | 0.3107 % change on previous year | -0.4% |
| 1764 | 0.3095 % change on previous year | -0.4% |
| 1765 | 0.3083 % change on previous year | -0.4% |
| 1766 | 0.307 % change on previous year | -0.4% |
| 1767 | 0.3061 % change on previous year | -0.3% |
| 1768 | 0.3042 % change on previous year | -0.6% |
| 1769 | 0.3032 % change on previous year | -0.3% |
| 1770 | 0.3023 % change on previous year | -0.3% |
| 1771 | 0.2975 % change on previous year | -1.6% |
| 1772 | 0.2966 % change on previous year | -0.3% |
| 1773 | 0.2947 % change on previous year | -0.6% |
| 1774 | 0.2939 % change on previous year | -0.3% |
| 1775 | 0.293 % change on previous year | -0.3% |
| 1776 | 0.2912 % change on previous year | -0.6% |
| 1777 | 0.2903 % change on previous year | -0.3% |
| 1778 | 0.2895 % change on previous year | -0.3% |
| 1779 | 0.2877 % change on previous year | -0.6% |
| 1780 | 0.2878 % change on previous year | +0.0% |
| 1781 | 0.2813 % change on previous year | -2.3% |
| 1782 | 0.2805 % change on previous year | -0.3% |
| 1783 | 0.2797 % change on previous year | -0.3% |
| 1784 | 0.2789 % change on previous year | -0.3% |
| 1785 | 0.2772 % change on previous year | -0.6% |
| 1786 | 0.2764 % change on previous year | -0.3% |
| 1787 | 0.2757 % change on previous year | -0.3% |
| 1788 | 0.274 % change on previous year | -0.6% |
| 1789 | 0.2732 % change on previous year | -0.3% |
| 1790 | 0.2715 % change on previous year | -0.6% |
| 1791 | 0.2671 % change on previous year | -1.6% |
| 1792 | 0.2654 % change on previous year | -0.6% |
| 1793 | 0.2638 % change on previous year | -0.6% |
| 1794 | 0.264 % change on previous year | +0.1% |
| 1795 | 0.2624 % change on previous year | -0.6% |
| 1796 | 0.2608 % change on previous year | -0.6% |
| 1797 | 0.2611 % change on previous year | +0.1% |
| 1798 | 0.2585 % change on previous year | -1.0% |
| 1799 | 0.2588 % change on previous year | +0.1% |
| 1800 | 0.2572 % change on previous year | -0.6% |
| 1801 | 0.2511 % change on previous year | -2.4% |
| 1802 | 0.2505 % change on previous year | -0.3% |
| 1803 | 0.2499 % change on previous year | -0.2% |
| 1804 | 0.2483 % change on previous year | -0.6% |
| 1805 | 0.2477 % change on previous year | -0.2% |
| 1806 | 0.2462 % change on previous year | -0.6% |
| 1807 | 0.2456 % change on previous year | -0.2% |
| 1808 | 0.245 % change on previous year | -0.2% |
| 1809 | 0.2435 % change on previous year | -0.6% |
| 1810 | 0.2429 % change on previous year | -0.2% |
| 1811 | 0.2361 % change on previous year | -2.8% |
| 1812 | 0.2347 % change on previous year | -0.6% |
| 1813 | 0.235 % change on previous year | +0.1% |
| 1814 | 0.2336 % change on previous year | -0.6% |
| 1815 | 0.2322 % change on previous year | -0.6% |
| 1816 | 0.2317 % change on previous year | -0.2% |
| 1817 | 0.2311 % change on previous year | -0.2% |
| 1818 | 0.2297 % change on previous year | -0.6% |
| 1819 | 0.2283 % change on previous year | -0.6% |
| 1820 | 0.2287 % change on previous year | +0.2% |
| 1821 | 1.66 % change on previous year | +627.5% |
| 1822 | 1.63 % change on previous year | -1.8% |
| 1823 | 1.61 % change on previous year | -1.7% |
| 1824 | 1.58 % change on previous year | -1.7% |
| 1825 | 1.55 % change on previous year | -1.7% |
| 1826 | 1.52 % change on previous year | -1.7% |
| 1827 | 1.5 % change on previous year | -1.6% |
| 1828 | 1.48 % change on previous year | -1.7% |
| 1829 | 1.45 % change on previous year | -1.6% |
| 1830 | 1.43 % change on previous year | -1.6% |
| 1831 | 1.4 % change on previous year | -2.0% |
| 1832 | 1.38 % change on previous year | -1.5% |
| 1833 | 1.36 % change on previous year | -1.6% |
| 1834 | 1.34 % change on previous year | -1.4% |
| 1835 | 1.32 % change on previous year | -1.5% |
| 1836 | 1.3 % change on previous year | -1.5% |
| 1837 | 1.28 % change on previous year | -1.4% |
| 1838 | 1.26 % change on previous year | -1.5% |
| 1839 | 1.24 % change on previous year | -1.4% |
| 1840 | 1.23 % change on previous year | -1.4% |
| 1841 | 1.2 % change on previous year | -2.0% |
| 1842 | 1.19 % change on previous year | -1.4% |
| 1843 | 1.17 % change on previous year | -1.3% |
| 1844 | 1.15 % change on previous year | -1.3% |
| 1845 | 1.14 % change on previous year | -1.3% |
| 1846 | 1.12 % change on previous year | -1.3% |
| 1847 | 1.11 % change on previous year | -1.3% |
| 1848 | 1.09 % change on previous year | -1.3% |
| 1849 | 1.08 % change on previous year | -1.2% |
| 1850 | 1.07 % change on previous year | -1.3% |
| 1851 | 0.0151 % change on previous year | -98.6% |
| 1852 | 0.0128 % change on previous year | -15.4% |
| 1853 | -0.4455 % change on previous year | -3581.4% |
| 1854 | -0.4475 % change on previous year | +0.4% |
| 1855 | -0.4501 % change on previous year | +0.6% |
| 1856 | -0.4533 % change on previous year | +0.7% |
| 1857 | -0.456 % change on previous year | +0.6% |
| 1858 | 7.24 % change on previous year | -1688.5% |
| 1859 | 2.27 % change on previous year | -68.6% |
| 1860 | 2.27 % change on previous year | -0.1% |
| 1861 | 2.27 % change on previous year | -0.1% |
| 1862 | 2.26 % change on previous year | -0.2% |
| 1863 | 2.26 % change on previous year | -0.1% |
| 1864 | -0.6789 % change on previous year | -130.1% |
| 1865 | -0.6845 % change on previous year | +0.8% |
| 1866 | -0.6898 % change on previous year | +0.8% |
| 1867 | -0.6961 % change on previous year | +0.9% |
| 1868 | -0.2003 % change on previous year | -71.2% |
| 1869 | -0.2074 % change on previous year | +3.5% |
| 1870 | -0.2135 % change on previous year | +2.9% |
| 1871 | -0.2206 % change on previous year | +3.3% |
| 1872 | -0.2277 % change on previous year | +3.3% |
| 1873 | -0.236 % change on previous year | +3.6% |
| 1874 | -0.2774 % change on previous year | +17.5% |
| 1875 | -0.2859 % change on previous year | +3.1% |
| 1876 | -0.295 % change on previous year | +3.2% |
| 1877 | -0.3048 % change on previous year | +3.3% |
| 1878 | -0.3146 % change on previous year | +3.2% |
| 1879 | 2.8 % change on previous year | -989.0% |
| 1880 | 2.79 % change on previous year | -0.1% |
| 1881 | 2.79 % change on previous year | -0.1% |
| 1882 | 2.79 % change on previous year | -0.1% |
| 1883 | 2.78 % change on previous year | -0.4% |
| 1884 | 3.83 % change on previous year | +38.1% |
| 1885 | 3.83 % change on previous year | -0.0% |
| 1886 | 3.83 % change on previous year | -0.0% |
| 1887 | 2.52 % change on previous year | -34.3% |
| 1888 | 2.52 % change on previous year | -0.1% |
| 1889 | 1.17 % change on previous year | -53.6% |
| 1890 | 1.17 % change on previous year | +0.1% |
| 1891 | 1.17 % change on previous year | +0.1% |
| 1892 | 1.25 % change on previous year | +7.0% |
| 1893 | 1.07 % change on previous year | -14.1% |
| 1894 | 1.66 % change on previous year | +54.3% |
| 1895 | 1.66 % change on previous year | +0.1% |
| 1896 | 1.66 % change on previous year | +0.1% |
| 1897 | 1.65 % change on previous year | -0.4% |
| 1898 | 0.9366 % change on previous year | -43.4% |
| 1899 | 0.9354 % change on previous year | -0.1% |
| 1900 | 0.9581 % change on previous year | +2.4% |
| 1901 | 0.9657 % change on previous year | +0.8% |
| 1902 | 0.4543 % change on previous year | -53.0% |
| 1903 | 1.61 % change on previous year | +253.9% |
| 1904 | 1.6 % change on previous year | -0.2% |
| 1905 | 1.6 % change on previous year | -0.2% |
| 1906 | 1.6 % change on previous year | -0.2% |
| 1907 | -0.0447 % change on previous year | -102.8% |
| 1908 | 1.36 % change on previous year | -3149.0% |
| 1909 | 1.37 % change on previous year | +0.1% |
| 1910 | 1.37 % change on previous year | +0.1% |
| 1911 | 1.37 % change on previous year | +0.1% |
| 1912 | 1.42 % change on previous year | +3.8% |
| 1913 | -0.4781 % change on previous year | -133.7% |
| 1914 | 1.26 % change on previous year | -364.2% |
| 1915 | 0.6095 % change on previous year | -51.8% |
| 1916 | 0.6348 % change on previous year | +4.2% |
| 1917 | 0.6214 % change on previous year | -2.1% |
| 1918 | 0.6412 % change on previous year | +3.2% |
| 1919 | 0.6265 % change on previous year | -2.3% |
| 1920 | 0.6193 % change on previous year | -1.2% |
| 1921 | 0.6133 % change on previous year | -1.0% |
| 1922 | 0.7859 % change on previous year | +28.2% |
| 1923 | 0.6907 % change on previous year | -12.1% |
| 1924 | 0.7858 % change on previous year | +13.8% |
| 1925 | 0.7291 % change on previous year | -7.2% |
| 1926 | 0.7349 % change on previous year | +0.8% |
| 1927 | 0.6274 % change on previous year | -14.6% |
| 1928 | 1.33 % change on previous year | +112.1% |
| 1929 | 1.45 % change on previous year | +8.8% |
| 1930 | 1.38 % change on previous year | -4.9% |
| 1931 | 1.4 % change on previous year | +1.7% |
| 1932 | 1.51 % change on previous year | +7.9% |
| 1933 | 2 % change on previous year | +32.7% |
| 1934 | 1.97 % change on previous year | -1.8% |
| 1935 | 1.99 % change on previous year | +1.1% |
| 1936 | 1.79 % change on previous year | -9.9% |
| 1937 | 2.01 % change on previous year | +12.1% |
| 1938 | 1.13 % change on previous year | -43.8% |
| 1939 | 1.2 % change on previous year | +6.1% |
| 1940 | 1.36 % change on previous year | +13.5% |
| 1941 | 1.33 % change on previous year | -2.3% |
| 1942 | 1.62 % change on previous year | +22.1% |
| 1943 | 1.01 % change on previous year | -37.6% |
| 1944 | 1.24 % change on previous year | +22.9% |
| 1945 | 1.5 % change on previous year | +20.9% |
| 1946 | 1.64 % change on previous year | +8.8% |
| 1947 | 1.15 % change on previous year | -29.8% |
| 1948 | 1.4 % change on previous year | +22.1% |
| 1949 | 5.52 % change on previous year | +293.3% |
| 1950 | 10.93 % change on previous year | +98.2% |
| 1951 | -2.16 % change on previous year | -119.7% |
| 1952 | -5.7 % change on previous year | +163.9% |
| 1953 | -4.54 % change on previous year | -20.2% |
| 1954 | -5.01 % change on previous year | +10.3% |
| 1955 | -5.67 % change on previous year | +13.2% |
| 1956 | -5.12 % change on previous year | -9.7% |
| 1957 | -5.35 % change on previous year | +4.5% |
| 1958 | -10.21 % change on previous year | +90.8% |
| 1959 | -6.81 % change on previous year | -33.3% |
| 1960 | -2.01 % change on previous year | -70.5% |
| 1961 | -8.76 % change on previous year | +336.4% |
| 1962 | -11.71 % change on previous year | +33.7% |
| 1963 | -13.74 % change on previous year | +17.4% |
| 1964 | -15.09 % change on previous year | +9.8% |
| 1965 | -13.75 % change on previous year | -8.9% |
| 1966 | 32.4 % change on previous year | -335.7% |
| 1967 | 7.4 % change on previous year | -77.2% |
| 1968 | 8.11 % change on previous year | +9.6% |
| 1969 | 12.28 % change on previous year | +51.5% |
| 1970 | -0.9238 % change on previous year | -107.5% |
| 1971 | -7.71 % change on previous year | +734.2% |
| 1972 | 17.37 % change on previous year | -325.3% |
| 1973 | 6.22 % change on previous year | -64.2% |
| 1974 | 2.44 % change on previous year | -60.8% |
| 1975 | -2.05 % change on previous year | -184.1% |
| 1976 | 19.25 % change on previous year | -1037.6% |
| 1977 | 11.83 % change on previous year | -38.6% |
| 1978 | 10.38 % change on previous year | -12.2% |
| 1979 | 0.2833 % change on previous year | -97.3% |
| 1980 | 8.06 % change on previous year | +2743.0% |
| 1981 | 1.16 % change on previous year | -85.6% |
| 1982 | 5.08 % change on previous year | +339.1% |
| 1983 | 5.97 % change on previous year | +17.6% |
| 1984 | 8.72 % change on previous year | +46.0% |
| 1985 | 15.16 % change on previous year | +73.9% |
| 1986 | 6.84 % change on previous year | -54.9% |
| 1987 | 0.0014 % change on previous year | -100.0% |
| 1988 | -1.95 % change on previous year | -139414.8% |
| 1989 | 6.88 % change on previous year | -451.8% |
| 1990 | 3.4 % change on previous year | -50.6% |
| 1991 | 4.85 % change on previous year | +42.6% |
| 1992 | 2.63 % change on previous year | -45.7% |
| 1993 | 4.68 % change on previous year | +77.8% |
| 1994 | -2.68 % change on previous year | -157.2% |
| 1995 | -0.3996 % change on previous year | -85.1% |
| 1996 | 2.34 % change on previous year | -684.9% |
| 1997 | -3.25 % change on previous year | -239.0% |
| 1998 | 8.05 % change on previous year | -347.7% |
| 1999 | 4.39 % change on previous year | -45.4% |
| 2000 | 2.95 % change on previous year | -32.8% |
| 2001 | -4.23 % change on previous year | -243.4% |
| 2002 | 4.3 % change on previous year | -201.7% |
| 2003 | 0.3563 % change on previous year | -91.7% |
| 2004 | 2.85 % change on previous year | +701.3% |
| 2005 | 0.1917 % change on previous year | -93.3% |
| 2006 | -10.58 % change on previous year | -5617.3% |
| 2007 | 4.31 % change on previous year | -140.8% |
| 2008 | 4.84 % change on previous year | +12.2% |
| 2009 | -4.26 % change on previous year | -188.1% |
| 2010 | 3.55 % change on previous year | -183.2% |
| 2011 | 6 % change on previous year | +69.1% |
| 2012 | 12.02 % change on previous year | +100.5% |
| 2013 | 4.94 % change on previous year | -58.9% |
| 2014 | 1.35 % change on previous year | -72.5% |
| 2015 | 4.89 % change on previous year | +261.0% |
| 2016 | -7.48 % change on previous year | -252.9% |
| 2017 | -2.91 % change on previous year | -61.1% |
| 2018 | -2.97 % change on previous year | +2.1% |
| 2019 | 4.25 % change on previous year | -243.0% |
| 2020 | 0.9249 % change on previous year | -78.2% |
| 2021 | -7.31 % change on previous year | -890.7% |
| 2022 | -0.7883 % change on previous year | -89.2% |
Algeria compared with similar countries
- Algeria's -0.7883 % change on previous year is below the median for upper middle income countries, which is -0.0344 % change on previous year, 22.9× the median. (57 countries reporting)
- Algeria's -0.7883 % change on previous year is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 1.6 % change on previous year. (22 countries reporting)
Biggest year-on-year movements
Years where emissions of air pollutants, annual growth rate in Algeria changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1988 | -139414.8% | 0.0014 % change on previous year | -1.95 % change on previous year |
| 2006 | -5617.3% | 0.1917 % change on previous year | -10.58 % change on previous year |
| 1853 | -3581.4% | 0.0128 % change on previous year | -0.4455 % change on previous year |
| 1908 | +3149.0% | -0.0447 % change on previous year | 1.36 % change on previous year |
| 1980 | +2743.0% | 0.2833 % change on previous year | 8.06 % change on previous year |
| 1858 | +1688.5% | -0.456 % change on previous year | 7.24 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1750s | 0.3244 % change on previous year | 0.3192 % change on previous year | 0.3296 % change on previous year | 9 |
| 1760s | 0.3092 % change on previous year | 0.3032 % change on previous year | 0.3179 % change on previous year | 10 |
| 1770s | 0.2937 % change on previous year | 0.2877 % change on previous year | 0.3023 % change on previous year | 10 |
| 1780s | 0.2785 % change on previous year | 0.2732 % change on previous year | 0.2878 % change on previous year | 10 |
| 1790s | 0.2633 % change on previous year | 0.2585 % change on previous year | 0.2715 % change on previous year | 10 |
| 1800s | 0.2485 % change on previous year | 0.2435 % change on previous year | 0.2572 % change on previous year | 10 |
| 1810s | 0.2335 % change on previous year | 0.2283 % change on previous year | 0.2429 % change on previous year | 10 |
| 1820s | 1.42 % change on previous year | 0.2287 % change on previous year | 1.66 % change on previous year | 10 |
| 1830s | 1.33 % change on previous year | 1.24 % change on previous year | 1.43 % change on previous year | 10 |
| 1840s | 1.15 % change on previous year | 1.08 % change on previous year | 1.23 % change on previous year | 10 |
| 1850s | 0.8357 % change on previous year | -0.456 % change on previous year | 7.24 % change on previous year | 10 |
| 1860s | 0.5898 % change on previous year | -0.6961 % change on previous year | 2.27 % change on previous year | 10 |
| 1870s | 0.0421 % change on previous year | -0.3146 % change on previous year | 2.8 % change on previous year | 10 |
| 1880s | 2.89 % change on previous year | 1.17 % change on previous year | 3.83 % change on previous year | 10 |
| 1890s | 1.32 % change on previous year | 0.9354 % change on previous year | 1.66 % change on previous year | 10 |
| 1900s | 1.15 % change on previous year | -0.0447 % change on previous year | 1.61 % change on previous year | 10 |
| 1910s | 0.8071 % change on previous year | -0.4781 % change on previous year | 1.42 % change on previous year | 10 |
| 1920s | 0.8364 % change on previous year | 0.6133 % change on previous year | 1.45 % change on previous year | 10 |
| 1930s | 1.64 % change on previous year | 1.13 % change on previous year | 2.01 % change on previous year | 10 |
| 1940s | 1.78 % change on previous year | 1.01 % change on previous year | 5.52 % change on previous year | 10 |
| 1950s | -3.96 % change on previous year | -10.21 % change on previous year | 10.93 % change on previous year | 10 |
| 1960s | -0.4862 % change on previous year | -15.09 % change on previous year | 32.4 % change on previous year | 10 |
| 1970s | 5.71 % change on previous year | -7.71 % change on previous year | 19.25 % change on previous year | 10 |
| 1980s | 5.59 % change on previous year | -1.95 % change on previous year | 15.16 % change on previous year | 10 |
| 1990s | 2.4 % change on previous year | -3.25 % change on previous year | 8.05 % change on previous year | 10 |
| 2000s | 0.0737 % change on previous year | -10.58 % change on previous year | 4.84 % change on previous year | 10 |
| 2010s | 2.36 % change on previous year | -7.48 % change on previous year | 12.02 % change on previous year | 10 |
| 2020s | -2.39 % change on previous year | -7.31 % change on previous year | 0.9249 % change on previous year | 3 |
Countries ranked near Algeria
- 147 Belgium -0.6926 % change on previous year compare
- 148 Sri Lanka -0.7206 % change on previous year compare
- 149 Kiribati -0.7371 % change on previous year compare
- 151 North Korea -0.8934 % change on previous year compare
- 152 Tonga -0.9051 % change on previous year compare
- 153 Vietnam -0.9171 % change on previous year compare
More climate change data for Algeria
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 76.51 million kg (2050)
- Emissions from livestock — Emissions (CO2eq) 14,392 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 5,289 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 9,103 kt (2050)
- Emissions from livestock — Emissions 19.96 kt (2050)
- Emissions from livestock — Emissions 325.12 kt (2050)
- Emissions from crops — Emissions (CO2eq) 936.25 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 865.33 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 70.92 kt (2050)
- Emissions from crops — Emissions 3.27 kt (2050)
Frequently asked questions
- What is emissions of air pollutants, annual growth rate in Algeria?
- Emissions of air pollutants, annual growth rate in Algeria was -0.7883 % change on previous year in 2022, according to Statizoid (derived).
- What is the highest emissions of air pollutants, annual growth rate recorded in Algeria?
- The highest recorded value was 32.4 % change on previous year in 1966.
- What is the lowest emissions of air pollutants, annual growth rate recorded in Algeria?
- The lowest recorded value was -15.09 % change on previous year in 1964.
- How does Algeria rank for emissions of air pollutants, annual growth rate?
- Algeria ranks 150th out of 219 countries with data for 2022.
- Is emissions of air pollutants, annual growth rate rising or falling in Algeria?
- Over the last ten years it is down 106.6%. The long-run trend across the full record is volatile.
- Where does this Algeria data come from?
- The figures come from Statizoid (derived), published as part of emissions of air pollutants, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 272 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
The year-on-year percentage change in emissions of air pollutants. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- emissions of air pollutants Hoesly et al. (2024) – Community Emissions Data System (CEDS) – with major processing by Our World in Data
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
The year-on-year percentage change in emissions of air pollutants. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.