1950   /  1:   ....
 1951   /  2: -1.304
 1952   /  3: -1.253
 1953   /  4: -1.390
 1954   /  5: -1.295
 1955   /  6: -1.150
 1956   /  7: -1.290
 1957   /  8: -1.648
 1958   /  9: -0.785
 1959   / 10: -1.027
 1960   / 11: -0.967
 1961   / 12: -1.072
 1962   / 13: -0.990
 1963   / 14: -0.885
 1964   / 15: -0.968
 1965   / 16: -1.005
 1966   / 17: -0.634
 1967   / 18: -1.149
 1968   / 19: -1.335
 1969   / 20: -0.657
 1970   / 21: -0.521
 1971   / 22: -0.902
 1972   / 23: -1.219
 1973   / 24: -0.641
 1974   / 25: -1.180
 1975   / 26: -1.256
 1976   / 27: -1.448
 1977   / 28: -0.997
 1978   / 29: -0.758
 1979   / 30: -0.632
 1980   / 31: -0.526
 1981   / 32: -0.726
 1982   / 33: -0.851
 1983   / 34: -0.721
 1984   / 35: -0.634
 1985   / 36: -0.716
 1986   / 37: -0.742
 1987   / 38: -0.299
 1988   / 39: -0.165
 1989   / 40: -0.903
 1990   / 41: -0.495
 1991   / 42: -0.412
 1992   / 43: -0.852
 1993   / 44: -0.827
 1994   / 45: -0.416
 1995   / 46: -0.392
 1996   / 47: -0.281
 1997   / 48: -0.629
 1998   / 49: -0.019
 1999   / 50:  0.013
 2000   / 51: -0.348
 2001   / 52: -0.224
 2002   / 53: -0.130
 2003   / 54:  0.063
 2004   / 55: -0.044
 2005   / 56:  0.084
 2006   / 57:  0.131
 2007   / 58:  0.066
 2008   / 59: -0.214
 2009   / 60:  0.092
 2010   / 61:  0.789
 2011   / 62:  0.211
 2012   / 63: -0.113
 2013   / 64:  0.320
 2014   / 65:  0.253
 2015   / 66:  0.272
 2016   / 67:  0.698
 2017   / 68:  0.472
 2018   / 69:  0.528
 2019   / 70:  0.452
 2020   / 71:  0.460
 2021   / 72:  0.610
 2022   / 73:  0.338
 2023   / 74:  0.490
 2024   / 75:  1.212
 2025   / 76:  0.895