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 NA
1902 NA
1903 NA
1904 -0.179892892118642
1905 -0.0424967529839615
1906 -0.249880385610711
1907 0.163638108501195
1908 0.197033949244152
1909 -1.34886440719923
1910 -0.494399669634186
1911 0.400807572569263
1912 -0.494399669634186
1913 -0.739800983673565
1914 -0.249880385610711
1915 -0.775809988679342
1916 0.50227495332468
1917 0.0607247542374675
1918 0.787236867179462
1919 0.620404173275508
1920 2.35275241476215
1921 -1.20917150617666
1922 0.375902039131123
1923 -0.494399669634186
1924 1.17287400715097
1925 -0.650846510848972
1926 1.62157903767803
1927 1.22427654630487
1928 1.38857877344814
1929 0.12085330980949
1930 -0.243332498729726
1931 0.976352700053635
1932 -0.650846510848972
1933 0.477790975096654
1934 -0.704038256662478
1935 1.47537379098571
1936 0.896003259850958
1937 1.04253663886255
1938 0.197033949244152
1939 1.15995903098665
1940 1.51222633698084
1941 0.302035749076298
1942 0.287150511133732
1943 -1.28850896136438
1944 -0.704038256662478
1945 -0.194468593391752
1946 0.0591746681959083
1947 -0.226996615572541
1948 1.38857877344814
1949 -1.83871353628375
1950 -0.146030473220988
1951 1.68157070461173
1952 -0.0503936375282588
1953 0.592149832688315
1954 1.74103581538204
1955 0.896003259850958
1956 1.60951641055286
1957 0.477790975096654
1958 1.45069127769539
1959 -1.59810895595451
1960 2.91670449712345
1961 1.08191797401155
1962 0.390565029982468
1963 1.43831543451801
1964 -0.757774426386634
1965 0.896003259850958
1966 -0.0820921501374615
1967 0.577973085661932
1968 -0.162129801777042
1969 -1.28850896136438
1970 -0.375794539223801
1971 -1.61947857198524
1972 -1.59810895595451
1973 -0.210708769647895
1974 -0.43972174064487
1975 0.153962902041979
1976 -0.140117578703471
1977 0.833409514542123
1978 -0.126852394470609
1979 0.136812472238122
1980 -0.464299117478985
1981 0.0105992538398156
1982 -0.611336498404077
1983 0.457291517779636
1984 -0.361049220797655
1985 0.0729711531445554
1986 -0.258191000250712
1987 2.00567838554033
1988 -1.47039635099901
1989 -1.59751199409587
1990 -1.40585793492179
1991 1.99077936377036
1992 -0.618012103885809
1993 -0.640307454280251
1994 -0.875920359878269
1995 -0.771674331977865
1996 -1.62219944285023
1997 -0.0378900703126956
1998 -0.947890113690567
1999 -0.185135746855519
2000 -0.403821733268976
2001 0.579562534697045
2002 -1.03031573203165
2003 -1.06590539769162
2004 -0.311647982709111
2005 -0.586355680931198
2006 -1.84963702788223
2007 -2.44519049625181
2008 0.306271135433755
2009 -0.323105805697815
2010 0.297856812168142
2011 -1.95839435022899
2012 -0.522241116644668
2013 -0.142189593542894
2014 -0.227844894278159
2015 0.0280842514943401
2016 0.67601911452131
2017 NA
2018 NA
2019 NA
2020 NA
2021 NA
