1955  -68.659  16.6246
1956  -52.6951  16.5244
1957  -63.1805  16.3963
1958  -30.7694  16.2344
1959  -47.1502  16.4177
1960  -30.5731  16.2384
1961  -14.201  16.1866
1962  -2.97347  16.087
1963  -10.6707  15.9906
1964  -19.7098  15.9015
1965  -23.9451  15.7114
1966  -17.0086  15.596
1967  -32.0262  15.4285
1968  -44.4803  15.1184
1969  -38.3221  15.124
1970  -30.0994  14.9353
1971  -15.4881  14.5307
1972  -7.07308  14.6125
1973  -6.93441  14.6836
1974  -10.8153  14.9076
1975  3.12419  14.9968
1976  -4.1307  14.7739
1977  -5.23324  14.8347
1978  -1.84359  14.7226
1979  4.32633  14.4743
1980  23.1828  14.3156
1981  35.632  14.3621
1982  25.1379  14.2763
1983  8.47965  14.2229
1984  18.382  14.3094
1985  28.6369  14.0967
1986  22.8468  14.0872
1987  14.9757  13.8526
1988  33.5246  13.8767
1989  31.5998  13.9655
1990  35.1066  13.5579
1991  43.2453  13.5765
1992  53.8195  13.4647
1993  51.6037  13.3289
1994  53.509  13.6261
1995  36.0929  13.4098
1996  56.0148  13.396
1997  57.1564  13.4128
1998  58.4465  13.3161
1999  78.2931  13.3006
2000  67.9396  13.4437
2001  79.1437  13.4849
2002  103.683  13.3573
2003  124.453  12.6808
2004  116.598  11.9278
2005  114.95  11.2465
2006  122.568  10.9378
2007  108.067  10.7094
2008  122.224  10.5174
2009  132.648  10.323
2010  131.501  10.308
2011  138.757  10.2824
2012  136.562  10.239
2013  154.876  10.652
2014  157.139  10.6562
2015  171.492  10.5083
2016  161.548  10.529
2017  183.745  10.5286
2018  192.704  10.5914
2019  205.041  10.776
2020  207.056  10.9194
2021  217.699  11.4167
2022  230.638  11.6171
2023  236.02  11.6735