1955  -31.4146  8.82187
1956  -25.6324  8.79095
1957  -32.8766  8.68951
1958  -28.6061  8.6744
1959  -30.4674  8.67462
1960  -19.4049  8.59545
1961  -20.7682  8.63981
1962  -13.2984  8.59094
1963  -11.6559  8.54894
1964  -5.99863  8.50182
1965  -1.03477  8.52829
1966  1.85879  8.58767
1967  -9.91367  8.49809
1968  -15.4225  8.51128
1969  -12.0777  8.44419
1970  -5.69102  8.39534
1971  3.74551  8.32242
1972  -10.9742  8.38619
1973  -6.40195  8.37943
1974  -7.53965  8.4828
1975  5.48965  8.45481
1976  2.18008  8.41482
1977  2.54141  8.3952
1978  0.308984  8.40083
1979  -2.67344  8.36662
1980  11.6  8.40066
1981  6.58535  8.34485
1982  -4.6832  8.41264
1983  3.48184  8.31116
1984  6.33242  8.38305
1985  10.6586  8.30604
1986  18.727  8.31763
1987  7.84609  8.29611
1988  13.8568  8.32749
1989  18.3002  8.34032
1990  14.6205  8.2315
1991  17.3842  8.18715
1992  33.1801  8.13805
1993  37.7816  8.11338
1994  37.1303  8.15532
1995  25.2924  8.03379
1996  35.1957  8.02495
1997  41.3695  7.88964
1998  25.3471  7.80942
1999  37.6264  7.83377
2000  33.6879  7.85155
2001  43.0287  7.79188
2002  48.4711  7.34785
2003  59.2973  6.77166
2004  60.727  6.31477
2005  66.433  5.93262
2006  72.6244  5.74585
2007  68.9311  5.57332
2008  72.5854  5.4188
2009  76.3451  5.30217
2010  79.1801  5.25311
2011  86.1195  5.21637
2012  90.8686  5.174
2013  101.125  5.36318
2014  105.733  5.36806
2015  110.661  5.31057
2016  110.005  5.3119
2017  117.979  5.2549
2018  115.859  5.23324
2019  123.013  5.29928
2020  125.951  5.31932
2021  132.781  5.49227
2022  137.013  5.6152
2023  132.215  5.65061