--------------------------------- Aerosol Offset of GHG Forcing (%) --------------------------------- Year 0.5W/m2 0W/m2 in 1750 --------------------------------- 1751 98.7 * 1752 98.0 * 1753 98.0 * 1754 98.0 * 1755 98.0 0.0 1756 98.7 33.3 1757 98.7 33.3 1758 98.7 33.3 1759 98.1 16.7 1760 97.4 27.8 1761 96.2 27.8 1762 95.0 11.1 1763 93.7 -11.1 1764 94.3 0.0 1765 94.3 0.0 1766 94.4 11.1 1767 93.2 6.7 1768 92.7 13.3 1769 92.7 20.0 1770 92.1 13.3 1771 90.9 0.0 1772 90.3 -6.7 1773 90.9 0.0 1774 91.0 6.7 1775 90.4 6.7 1776 89.3 0.0 1777 89.9 5.6 1778 89.9 5.6 1779 89.9 10.3 1780 89.4 9.5 1781 89.0 13.7 1782 87.9 8.9 1783 86.2 0.0 1784 86.2 0.0 1785 86.2 0.0 1786 87.4 8.3 1787 87.9 12.5 1788 88.5 16.7 1789 88.0 16.2 1790 86.4 7.9 1791 85.3 3.7 1792 84.7 0.0 1793 85.9 7.4 1794 86.4 11.1 1795 86.4 11.1 1796 85.4 7.0 1797 84.9 6.7 1798 85.0 10.0 1799 85.1 12.7 1800 84.2 12.2 1801 83.8 14.4 1802 82.8 11.1 1803 82.4 10.9 1804 81.9 10.5 1805 81.5 10.3 1806 82.0 12.8 1807 82.5 15.4 1808 83.1 17.9 1809 83.1 17.9 1810 82.1 15.0 1811 81.2 12.3 1812 80.7 11.9 1813 81.3 14.3 1814 81.8 16.7 1815 81.8 16.7 1816 81.8 16.7 1817 81.5 18.2 1818 81.1 19.6 1819 80.3 18.8 1820 79.9 18.4 1821 79.5 18.0 1822 79.1 17.6 1823 79.1 17.6 1824 78.7 17.3 1825 78.3 17.0 1826 77.9 16.7 1827 78.9 20.4 1828 79.4 22.2 1829 80.4 25.9 1830 79.9 24.1 1831 79.0 21.9 1832 78.2 19.7 1833 77.9 20.6 1834 78.0 22.0 1835 78.1 23.3 1836 78.1 23.3 1837 78.6 25.0 1838 78.6 25.0 1839 78.7 26.2 1840 78.4 26.9 1841 78.1 27.7 1842 77.3 25.8 1843 76.9 24.2 1844 76.9 24.2 1845 77.3 25.8 1846 77.4 26.9 1847 78.0 29.4 1848 78.1 30.4 1849 79.0 33.3 1850 78.6 31.9 1851 78.1 30.5 1852 77.6 29.0 1853 78.5 31.8 1854 79.0 34.1 1855 78.8 34.7 1856 78.0 33.6 1857 77.7 34.0 1858 77.5 34.4 1859 77.2 34.7 1860 77.0 35.1 1861 76.8 35.6 1862 76.0 33.9 1863 75.6 33.5 1864 75.5 33.9 1865 75.8 35.6 1866 76.2 37.1 1867 76.6 38.8 1868 77.1 40.5 1869 77.5 42.0 1870 77.0 41.3 1871 76.5 40.7 1872 76.4 41.0 1873 76.8 42.4 1874 76.9 43.5 1875 76.7 43.6 1876 76.5 43.7 1877 76.6 44.6 1878 76.4 45.1 1879 76.3 46.0 1880 75.9 46.1 1881 75.4 46.0 1882 74.3 44.6 1883 73.7 44.2 1884 73.1 43.7 1885 72.9 44.1 1886 72.8 44.5 1887 73.3 45.9 1888 74.0 47.5 1889 74.6 49.0 1890 74.5 49.2 1891 74.5 49.3 1892 74.1 48.8 1893 74.6 49.8 1894 75.3 51.4 1895 75.9 52.9 1896 76.2 53.7 1897 76.9 55.2 1898 78.1 57.8 1899 79.5 60.6 1900 79.9 61.8 1901 79.9 62.2 1902 79.9 62.6 1903 80.5 64.1 1904 81.3 65.8 1905 82.0 67.5 1906 83.3 70.2 1907 83.8 71.4 1908 84.1 72.0 1909 83.9 72.0 1910 83.9 72.1 1911 83.8 72.2 1912 83.5 71.9 1913 83.0 71.2 1914 81.7 69.3 1915 80.7 67.8 1916 81.0 68.5 1917 81.8 70.0 1918 80.2 67.6 1919 78.9 65.7 1920 75.7 60.7 1921 74.2 58.5 1922 73.1 57.0 1923 73.6 58.0 1924 73.8 58.6 1925 73.0 57.7 1926 73.5 58.6 1927 73.9 59.6 1928 74.8 61.1 1929 74.4 60.8 1930 72.5 58.1 1931 69.0 52.9 1932 66.1 48.7 1933 66.1 49.0 1934 67.5 51.3 1935 69.7 54.8 1936 71.2 57.3 1937 71.3 57.6 1938 71.4 57.9 1939 71.7 58.5 1940 73.7 61.5 1941 75.2 63.8 1942 76.0 64.9 1943 76.1 65.1 1944 74.0 62.1 1945 71.7 58.8 1946 70.5 57.1 1947 71.6 58.8 1948 71.9 59.4 1949 72.3 60.1 1950 72.0 59.8 1951 72.8 61.2 1952 73.0 61.7 1953 73.4 62.3 1954 74.3 63.8 1955 75.6 65.8 1956 77.3 68.5 1957 77.9 69.4 1958 77.6 69.2 1959 77.4 69.1 1960 78.1 70.2 1961 78.4 70.9 1962 79.1 71.9 1963 79.1 72.1 1964 79.6 72.9 1965 79.2 72.5 1966 79.1 72.6 1967 79.1 72.6 1968 78.9 72.5 1969 79.3 73.2 1970 79.2 73.2 1971 79.8 74.2 1972 79.3 73.7 1973 78.5 72.9 1974 76.4 70.4 1975 75.4 69.2 1976 74.5 68.2 1977 74.0 67.8 1978 72.8 66.5 1979 71.4 65.0 1980 69.6 62.9 1981 68.2 61.3 1982 66.0 58.9 1983 64.6 57.3 1984 62.8 55.4 1985 62.0 54.6 1986 61.5 54.1 1987 60.8 53.4 1988 59.9 52.5 1989 58.9 51.4 1990 58.8 51.5 1991 57.6 50.2 1992 56.4 48.9 1993 54.9 47.2 1994 54.2 46.5 1995 53.0 45.1 1996 52.8 45.0 1997 52.9 45.3 1998 52.0 44.3 1999 49.2 41.2 2000 46.9 38.6 2001 46.9 38.7 2002 47.7 39.7 2003 48.4 40.6 2004 48.7 41.0 2005 48.9 41.3 2006 48.7 41.2 2007 47.7 40.1 2008 45.8 38.1 2009 44.4 36.5 2010 43.2 35.3 2011 42.7 34.8 2012 41.7 33.7 2013 40.7 32.8 2014 39.1 31.0 2015 37.9 29.7 2016 36.5 28.2 2017 35.7 27.5 2018 35.1 26.9 ---------------------------------