1955  -65.5952  16.6126
1956  -55.4604  16.5129
1957  -59.3442  16.392
1958  -26.8139  16.2549
1959  -43.1079  16.4193
1960  -29.0512  16.2442
1961  -18.7739  16.2033
1962  -8.06589  16.1103
1963  -20.5014  16.017
1964  -24.4673  15.9265
1965  -20.226  15.7517
1966  -20.9438  15.6534
1967  -30.6167  15.4814
1968  -44.0971  15.1971
1969  -42.4253  15.2205
1970  -28.6948  15.0576
1971  -10.8335  14.6724
1972  -8.23483  14.739
1973  -9.12839  14.7847
1974  -7.14499  15.0003
1975  8.40677  15.086
1976  -2.60983  14.882
1977  -2.92233  14.9286
1978  -9.26901  14.8356
1979  -6.61569  14.637
1980  25.8531  14.4969
1981  35.4048  14.5333
1982  25.9136  14.4229
1983  10.4615  14.4299
1984  27.7632  14.4607
1985  30.6919  14.24
1986  24.9546  14.2641
1987  18.941  14.1169
1988  38.9868  14.1151
1989  32.4536  14.1884
1990  35.7398  13.8883
1991  51.3218  13.8987
1992  50.1411  13.8291
1993  45.0943  13.7185
1994  47.6949  14.0004
1995  38.062  13.8235
1996  59.7095  13.7939
1997  66.229  13.8336
1998  61.6255  13.7538
1999  78.8618  13.7814
2000  68.565  13.918
2001  86.3042  14.0177
2002  106.122  13.9832
2003  128.946  13.5017
2004  119.967  12.9282
2005  118.804  12.5154
2006  122.355  12.4384
2007  111.454  12.375
2008  126.784  12.3839
2009  135.385  12.3439
2010  135.444  12.3382
2011  143.501  12.3285
2012  141.627  12.3354
2013  157.171  12.727
2014  159.529  12.7681
2015  173.943  12.6575
2016  165.395  12.6389
2017  185.004  11.9207
2018  185.787  12.7957