1950   /  1:   ....
 1951   /  2: -1.313
 1952   /  3: -1.189
 1953   /  4: -1.356
 1954   /  5: -1.335
 1955   /  6: -1.208
 1956   /  7: -1.296
 1957   /  8: -1.570
 1958   /  9: -0.829
 1959   / 10: -1.071
 1960   / 11: -1.013
 1961   / 12: -1.083
 1962   / 13: -1.078
 1963   / 14: -0.915
 1964   / 15: -0.991
 1965   / 16: -1.076
 1966   / 17: -0.682
 1967   / 18: -1.097
 1968   / 19: -1.278
 1969   / 20: -0.708
 1970   / 21: -0.616
 1971   / 22: -0.949
 1972   / 23: -1.199
 1973   / 24: -0.676
 1974   / 25: -1.152
 1975   / 26: -1.282
 1976   / 27: -1.418
 1977   / 28: -1.019
 1978   / 29: -0.796
 1979   / 30: -0.690
 1980   / 31: -0.564
 1981   / 32: -0.753
 1982   / 33: -0.859
 1983   / 34: -0.717
 1984   / 35: -0.638
 1985   / 36: -0.733
 1986   / 37: -0.749
 1987   / 38: -0.323
 1988   / 39: -0.198
 1989   / 40: -0.823
 1990   / 41: -0.476
 1991   / 42: -0.418
 1992   / 43: -0.816
 1993   / 44: -0.810
 1994   / 45: -0.425
 1995   / 46: -0.380
 1996   / 47: -0.248
 1997   / 48: -0.541
 1998   / 49: -0.013
 1999   / 50:  0.002
 2000   / 51: -0.342
 2001   / 52: -0.224
 2002   / 53: -0.087
 2003   / 54:  0.053
 2004   / 55: -0.074
 2005   / 56:  0.055
 2006   / 57:  0.122
 2007   / 58:  0.034
 2008   / 59: -0.165
 2009   / 60:  0.108
 2010   / 61:  0.666
 2011   / 62:  0.212
 2012   / 63: -0.078
 2013   / 64:  0.245
 2014   / 65:  0.216
 2015   / 66:  0.322
 2016   / 67:  0.688
 2017   / 68:  0.473
 2018   / 69:  0.515
 2019   / 70:  0.450
 2020   / 71:  0.462
 2021   / 72:  0.579
 2022   / 73:  0.379
 2023   / 74:  0.529
 2024   / 75:  1.156
 2025   / 76:  0.823