1880    -0.331799
    1881    -0.234783
    1882    -0.290404
    1883    -0.355365
    1884    -0.464220
    1885    -0.500540
    1886    -0.517970
    1887    -0.573615
    1888    -0.403014
    1889    -0.267444
    1890    -0.516601
    1891    -0.431607
    1892    -0.547405
    1893    -0.481667
    1894    -0.486515
    1895    -0.447206
    1896    -0.340685
    1897    -0.304765
    1898    -0.484965
    1899    -0.349911
    1900    -0.243391
    1901    -0.283137
    1902    -0.478441
    1903    -0.547518
    1904    -0.621468
    1905    -0.420740
    1906    -0.365928
    1907    -0.526654
    1908    -0.484655
    1909    -0.583663
    1910    -0.491808
    1911    -0.569541
    1912    -0.553645
    1913    -0.474733
    1914    -0.268104
    1915    -0.288385
    1916    -0.468359
    1917    -0.583047
    1918    -0.384557
    1919    -0.335731
    1920    -0.291275
    1921    -0.297493
    1922    -0.347396
    1923    -0.332525
    1924    -0.358080
    1925    -0.296639
    1926    -0.172807
    1927    -0.296236
    1928    -0.310315
    1929    -0.455620
    1930    -0.248593
    1931    -0.124118
    1932    -0.201055
    1933    -0.374582
    1934    -0.169110
    1935    -0.263021
    1936    -0.162884
    1937    0.0270242
    1938   -0.0550635
    1939   -0.0884326
    1940   0.00589165
    1941   -0.0269301
    1942   -0.0443188
    1943     0.121456
    1944    0.0877699
    1945    -0.104676
    1946    -0.140283
    1947   -0.0972575
    1948    -0.189405
    1949    -0.196636
    1950    -0.262407
    1951    -0.122864
    1952   -0.0126523
    1953    0.0184159
    1954    -0.167583
    1955    -0.152278
    1956    -0.235305
    1957   -0.0130575
    1958   -0.0275330
    1959   -0.0441774
    1960   -0.0963587
    1961  -0.00780427
    1962   -0.0790558
    1963   -0.0431802
    1964    -0.301751
    1965    -0.174123
    1966    -0.109176
    1967   -0.0644334
    1968    -0.139600
    1969   -0.0180252
    1970   -0.0422942
    1971    -0.163534
    1972   -0.0706678
    1973    0.0823393
    1974    -0.132508
    1975   -0.0792332
    1976    -0.198999
    1977     0.150819
    1978    0.0334480
    1979    0.0901572
    1980     0.209344
    1981     0.291246
    1982    0.0576051
    1983     0.240720
    1984    0.0672169
    1985    0.0548400
    1986    0.0912911
    1987     0.231017
    1988     0.297417
    1989     0.178568
    1990     0.365888
    1991     0.347380
    1992     0.153175
    1993     0.182559
    1994     0.261415
    1995     0.406707
    1996     0.292979
    1997     0.425280
    1998     0.582705
    1999     0.331751
    2000     0.326228
    2001     0.486628
    2002     0.582139
    2003     0.557137
    2004     0.501784
    2005     0.640173
    2006     0.586030
    2007     0.625417
    2008     0.488312
    2009     0.628208
    2010     0.705918
    2011     0.571828
    2012     0.584678
    2013     0.640614
    2014     0.673620
    2015     0.822136
    2016     0.934605
    2017     0.843400
    2018     0.786210
    2019     0.928041
    2020     0.954801
    2021     0.793288
    2022     0.853394