1780 NA
1781 NA
1782 NA
1783 NA
1784 NA
1785 NA
1786 NA
1787 NA
1788 NA
1789 NA
1790 NA
1791 NA
1792 NA
1793 NA
1794 NA
1795 NA
1796 NA
1797 NA
1798 NA
1799 NA
1800 NA
1801 NA
1802 NA
1803 NA
1804 NA
1805 NA
1806 NA
1807 NA
1808 NA
1809 NA
1810 NA
1811 NA
1812 NA
1813 NA
1814 NA
1815 NA
1816 NA
1817 NA
1818 NA
1819 NA
1820 NA
1821 NA
1822 NA
1823 NA
1824 NA
1825 NA
1826 NA
1827 NA
1828 NA
1829 NA
1830 NA
1831 NA
1832 NA
1833 NA
1834 NA
1835 NA
1836 NA
1837 NA
1838 NA
1839 NA
1840 NA
1841 NA
1842 NA
1843 NA
1844 NA
1845 NA
1846 NA
1847 NA
1848 NA
1849 NA
1850 NA
1851 NA
1852 NA
1853 NA
1854 NA
1855 NA
1856 NA
1857 NA
1858 NA
1859 NA
1860 NA
1861 NA
1862 NA
1863 NA
1864 NA
1865 NA
1866 NA
1867 NA
1868 NA
1869 NA
1870 NA
1871 NA
1872 NA
1873 NA
1874 NA
1875 NA
1876 NA
1877 NA
1878 NA
1879 NA
1880 NA
1881 NA
1882 NA
1883 NA
1884 NA
1885 NA
1886 NA
1887 NA
1888 NA
1889 NA
1890 NA
1891 NA
1892 NA
1893 NA
1894 NA
1895 NA
1896 NA
1897 NA
1898 NA
1899 NA
1900 NA
1901 -0.651659650855806
1902 -0.313870565680838
1903 -0.46342780980593
1904 -0.571991915108496
1905 -1.30924425297969
1906 -0.372948912982262
1907 -0.509545501079168
1908 -0.99050946584627
1909 -0.700360572409482
1910 0.7204127303468
1911 -0.700360572409482
1912 -0.494105931802169
1913 -0.255736735630838
1914 -0.299250100348415
1915 0.392300775436249
1916 -0.212733049151399
1917 -0.328550050488503
1918 1.54197818468517
1919 1.21063674824135
1920 2.18587390984416
1921 -2.07650364802124
1922 -0.22701193832461
1923 NA
1924 1.76286406772123
1925 2.06850345915107
1926 2.11912635384668
1927 -0.270183783919924
1928 -0.128194330734796
1929 -1.02638974312101
1930 1.20052795214867
1931 0.306028486954815
1932 -0.402854974263892
1933 -1.91374593687538
1934 -2.11027042111714
1935 -0.387870820471296
1936 -0.128194330734796
1937 0.00861198060663272
1938 -0.372948912982262
1939 NA
1940 -0.0728775883185961
1941 0.731671903874682
1942 -0.402854974263892
1943 -0.417902053286525
1944 0.500607445039449
1945 0.0752201978175994
1946 0.59455855248241
1947 1.57949036171901
1948 1.93974594354496
1949 -2.56032656568774
1950 -0.212733049151399
1951 -1.02638974312101
1952 0.7204127303468
1953 -1.52181518943267
1954 -0.816788693215568
1955 1.62597803841509
1956 -0.74976753683967
1957 -0.142151697689909
1958 1.2508523213135
1959 -0.372948912982262
1960 -1.08097137000854
1961 -0.0866308474068233
1962 -0.270183783919924
1963 0.166591503788135
1964 -1.57957356331521
1965 0.776416276892026
1966 1.03567296520433
1967 0.7204127303468
1968 0.629254493826775
1969 -0.733218465524153
1970 1.03567296520433
1971 -0.92166254031313
1972 -0.606819978949166
1973 -1.58822798243534
1974 -0.525053095073371
1975 -0.850809288724201
1976 -1.7235165647005
1977 0.842677611451778
1978 0.179472221774037
1979 0.59455855248241
1980 1.02727070710041
1981 NA
1982 1.21936303454677
1983 NA
1984 0.872714144271195
1985 -1.1552314674923
1986 0.166591503788135
1987 0.20510810355265
1988 0.488713046281952
1989 -0.328550050488503
1990 0.831703882141226
1991 0.512467809112092
1992 -0.716749810609649
1993 2.18587390984416
1994 0.897137457923588
1995 1.65366032279517
1996 -0.833755563209762
1997 1.27083011679831
1998 1.03567296520433
1999 0.571267980459293
2000 -0.766398044289818
2001 0.831703882141226
2002 0.524294394998391
2003 1.39864826395783
2004 0.0353936094597787
2005 -0.919916161735651
2006 -0.509545501079168
2007 0.255887499155524
2008 -0.885181939915907
2009 -0.733218465524153
2010 0.20510810355265
2011 0.798615867465904
2012 0.0619902280317138
2013 -0.46678941990954
2014 -1.28956873575075
2015 -1.30924425297969
2016 -0.22701193832461
2017 NA
2018 NA
2019 NA
2020 NA
2021 NA
