Year TSI+Volc 1610 1365.5469 1611 1365.53 1612 1365.9279 1613 1366.0399 1614 1366.1143 1615 1365.8314 1616 1365.4148 1617 1365.2889 1618 1365.2783 1619 1365.3684 1620 1365.3645 1621 1365.3607 1622 1365.3568 1623 1365.353 1624 1365.3121 1625 1365.5303 1626 1365.4191 1627 1365.3418 1628 1365.3518 1629 1365.2922 1630 1365.1428 1631 1365.1515 1632 1365.1183 1633 1365.2158 1634 1365.1362 1635 1365.1411 1636 1365.108 1637 1365.1046 1638 1365.571 1639 1365.6241 1640 1365.1936 1641 1365.0815 1642 1365.4006 1643 1365.1824 1644 1365.1272 1645 1365.0454 1646 1365.0449 1647 1365.0443 1648 1365.0424 1649 1365.0399 1650 1365.0389 1651 1365.0383 1652 1365.0657 1653 1365.0439 1654 1365.0358 1655 1365.026 1656 1365.0249 1657 1365.0199 1658 1365.0145 1659 1365.0125 1660 1365.0259 1661 1365.0178 1662 1365.0125 1663 1365.0125 1664 1365.0126 1665 1365.0127 1666 1365.0127 1667 1365.0125 1668 1365.0122 1669 1365.0122 1670 1365.0122 1671 1365.0183 1672 1365.0148 1673 1365.0122 1674 1365.0135 1675 1365.012 1676 1365.0239 1677 1365.0134 1678 1365.0128 1679 1365.0115 1680 1365.017 1681 1365.0115 1682 1365.0115 1683 1365.0115 1684 1365.0211 1685 1365.0117 1686 1365.0159 1687 1365.0126 1688 1365.0159 1689 1365.0146 1690 1365.0143 1691 1365.0157 1692 1365.0172 1693 1365.0177 1694 1365.0179 1695 1365.0186 1696 1365.0178 1697 1365.0178 1698 1365.0179 1699 1365.0184 1700 1365.0216 1701 1365.0236 1702 1365.0266 1703 1365.0444 1704 1365.0594 1705 1365.0752 1706 1365.0637 1707 1365.0802 1708 1365.0658 1709 1365.0614 1710 1365.0634 1711 1365.0739 1712 1365.0798 1713 1365.0863 1714 1365.1023 1715 1365.1294 1716 1365.1694 1717 1365.2294 1718 1365.1707 1719 1365.3429 1720 1365.2859 1721 1365.288 1722 1365.2209 1723 1365.1837 1724 1365.2681 1725 1365.2574 1726 1365.4274 1727 1365.4327 1728 1365.6237 1729 1365.3479 1730 1365.6605 1731 1365.1812 1732 1365.309 1733 1365.1984 1734 1365.2086 1735 1365.3386 1736 1365.5486 1737 1365.3827 1738 1365.337 1739 1365.5795 1740 1365.2811 1741 1365.6107 1742 1365.3247 1743 1365.2698 1744 1365.2137 1745 1365.2164 1746 1365.2223 1747 1365.2305 1748 1365.6548 1749 1365.6749 1750 1365.6385 1751 1365.468 1752 1365.4402 1753 1365.422 1754 1365.3351 1755 1365.322 1756 1365.3501 1757 1365.4734 1758 1365.5867 1759 1365.6501 1760 1365.6254 1761 1365.7898 1762 1365.6514 1763 1365.5811 1764 1365.5573 1765 1365.4065 1766 1365.3759 1767 1365.5817 1768 1365.8346 1769 1366.0194 1770 1366.022 1771 1365.9155 1772 1365.8433 1773 1365.6243 1774 1365.5862 1775 1365.4493 1776 1365.5039 1777 1365.6656 1778 1365.8955 1779 1365.9534 1780 1365.7753 1781 1365.8868 1782 1365.6217 1783 1365.5284 1784 1365.3966 1785 1365.4558 1786 1365.7682 1787 1365.9337 1788 1365.8801 1789 1365.8595 1790 1365.7604 1791 1365.6101 1792 1365.5961 1793 1365.5756 1794 1365.4816 1795 1365.3645 1796 1365.3348 1797 1365.2817 1798 1365.2567 1799 1365.2629 1800 1365.3035 1801 1365.5757 1802 1365.4541 1803 1365.3218 1804 1365.3257 1805 1365.3361 1806 1365.2385 1807 1365.171 1808 1365.1458 1809 1365.118 1810 1365.1094 1811 1365.1222 1812 1365.1631 1813 1365.2117 1814 1365.2355 1815 1365.2906 1816 1365.3866 1817 1365.36 1818 1365.3119 1819 1365.2968 1820 1365.241 1821 1365.2194 1822 1365.2432 1823 1365.2483 1824 1365.2893 1825 1365.3627 1826 1365.4659 1827 1365.5771 1828 1365.6646 1829 1365.6825 1830 1365.7235 1831 1365.5585 1832 1365.4565 1833 1365.3612 1834 1365.3966 1835 1365.6577 1836 1366.0393 1837 1366.1127 1838 1365.8997 1839 1365.8174 1840 1365.7007 1841 1365.549 1842 1365.494 1843 1365.4237 1844 1365.4543 1845 1365.582 1846 1365.6803 1847 1365.7816 1848 1365.9781 1849 1365.9691 1850 1365.70023478261 1851 1365.84976231884 1852 1365.77006231884 1853 1365.66016231884 1854 1365.53676231884 1855 1365.17990144928 1856 1360.33022753623 1857 1357.95836811594 1858 1362.29039855072 1859 1364.73438550725 1860 1365.76890144928 1861 1365.71737246377 1862 1364.1235942029 1863 1364.60801014493 1864 1365.35150724638 1865 1365.55086231884 1866 1365.48726231884 1867 1365.43506231884 1868 1365.59476231884 1869 1365.83106231884 1870 1366.06976231884 1871 1366.00966231884 1872 1365.96296231884 1873 1365.7097884058 1874 1365.63356231884 1875 1365.45587681159 1876 1364.83756086957 1877 1364.9711942029 1878 1365.15698695652 1879 1365.28373478261 1880 1365.52898550725 1881 1365.71966231884 1882 1365.59803478261 1883 1358.30600434783 1884 1347.48326666667 1885 1358.43453623188 1886 1360.9301057971 1887 1360.8982 1888 1362.52656811594 1889 1361.75613913043 1890 1360.56175362319 1891 1362.27982028986 1892 1363.36392753623 1893 1364.98898550725 1894 1365.71616956522 1895 1365.76798550725 1896 1363.51172318841 1897 1363.34303478261 1898 1364.04497246377 1899 1364.9728826087 1900 1365.3189942029 1901 1365.30456231884 1902 1362.18272753623 1903 1356.59572608696 1904 1362.20495652174 1905 1364.2943173913 1906 1365.16897826087 1907 1364.86767101449 1908 1364.92117681159 1909 1365.33811304348 1910 1365.25118985507 1911 1365.31831449275 1912 1363.10389855072 1913 1362.67402173913 1914 1364.38729855072 1915 1365.42813043478 1916 1365.8874057971 1917 1366.11176811594 1918 1366.08496231884 1919 1365.85556231884 1920 1364.58011884058 1921 1364.85762753623 1922 1365.41219130435 1923 1365.49606521739 1924 1365.22621594203 1925 1365.51147536232 1926 1365.76909710145 1927 1366.02216231884 1928 1365.37812318841 1929 1364.74561884058 1930 1365.31332608696 1931 1365.39432463768 1932 1364.7132115942 1933 1364.89386086957 1934 1365.41735507246 1935 1365.57578405797 1936 1366.10431449275 1937 1366.00962898551 1938 1365.71904202899 1939 1365.84187246377 1940 1365.87202608696 1941 1365.92046231884 1942 1365.44045072464 1943 1365.25946231884 1944 1365.55602898551 1945 1365.84042028986 1946 1366.05446231884 1947 1366.17212318841 1948 1366.39537681159 1949 1366.18013768116 1950 1366.0131 1951 1365.7996884058 1952 1365.55890434783 1953 1365.40811014493 1954 1365.42451594203 1955 1365.80628550725 1956 1366.38626231884 1957 1366.74346231884 1958 1366.70816231884 1959 1366.45816231884 1960 1365.90568550725 1961 1364.64453768116 1962 1364.07303768116 1963 1359.06441594203 1964 1355.88890434783 1965 1360.34859275362 1966 1363.19895942029 1967 1364.43314057971 1968 1362.70932753623 1969 1362.14325217391 1970 1364.40491884058 1971 1365.46524637681 1972 1365.90757246377 1973 1365.0338826087 1974 1364.21985362319 1975 1361.86493478261 1976 1364.16703913043 1977 1365.55483913043 1978 1365.52687391304 1979 1365.75943768116 1980 1366.39892463768 1981 1366.38785362319 1982 1358.81923333333 1983 1357.22528695652 1984 1362.54073478261 1985 1364.35464347826 1986 1364.21181304348 1987 1364.85656666667 1988 1365.57825217391 1989 1366.32326231884 1990 1366.21706811594 1991 1358.25439565217 1992 1351.57746231884 1993 1360.60251304348 1994 1363.72753478261 1995 1364.85322318841 1996 1365.18311449275 1997 1365.48482753623 1998 1366.13108550725 1999 1366.46046231884 2000 1366.75896231884 2001 1366.67756231884 2002 1366.75606231884 2003 1366.30536231884 2004 1366.048 2005 1365.8545 2006 1365.8107 2007 1365.724 2008 1365.6918 2009 1365.1831 2010 1365.4848 2011 1366.1311 2012 1366.4605 2013 1366.759 2014 1366.6776 2015 1366.7561 2016 1366.3054 2017 1366.048 2018 1365.8545 2019 1365.8107 2020 1365.724 2021 1365.6918 2022 1365.1831 2023 1365.4848 2024 1366.1311 2025 1366.4605 2026 1366.759 2027 1366.6776 2028 1366.7561 2029 1366.3054 2030 1366.048 2031 1365.8545 2032 1365.8107 2033 1365.724 2034 1365.6918 2035 1365.1831 2036 1365.4848 2037 1366.1311 2038 1366.4605 2039 1366.759 2040 1366.6776 2041 1366.7561 2042 1366.3054 2043 1366.048 2044 1365.8545 2045 1365.8107 2046 1365.724 2047 1365.6918 2048 1365.1831 2049 1365.4848 2050 1366.1311 2051 1366.4605 2052 1366.759 2053 1366.6776 2054 1366.7561 2055 1366.3054 2056 1366.048 2057 1365.8545 2058 1365.8107 2059 1365.724 2060 1365.6918 2061 1365.1831 2062 1365.4848 2063 1366.1311 2064 1366.4605 2065 1366.759 2066 1366.6776 2067 1366.7561 2068 1366.3054 2069 1366.048 2070 1365.8545 2071 1365.8107 2072 1365.724 2073 1365.6918 2074 1365.1831 2075 1365.4848 2076 1366.1311 2077 1366.4605 2078 1366.759 2079 1366.6776 2080 1366.7561 2081 1366.3054 2082 1366.048 2083 1365.8545 2084 1365.8107 2085 1365.724 2086 1365.6918 2087 1365.1831 2088 1365.4848 2089 1366.1311 2090 1366.4605 2091 1366.759 2092 1366.6776 2093 1366.7561 2094 1366.3054 2095 1366.048 2096 1365.8545 2097 1365.8107 2098 1365.724 2099 1365.6918 2100 1365.1831