1958  1.001622
1959  -0.9378507
1960  0.6160502
1961  1.934218
1962  0.1181438
1963  0.1443462
1964  0.490502
1965  0.1070013
1966  0.02321423
1967  0.425752
1968  -0.7930076
1969  -1.564077
1970  0.1645459
1971  0.2168022
1972  0.8770405
1973  0.9949949
1974  -0.3862563
1975  1.160147
1976  -0.04010537
1977  0.04061846
1978  1.759849
1979  0.5834557
1980  -1.720097
1981  0.6174787
1982  0.3167556
1983  -0.857914
1984  1.149714
1985  0.4797577
1986  -1.21793
1987  -1.050218
1988  -0.1913941
1989  0.07401796
1990  0.2049561
1991  -0.9574566
1992  -0.9972197
1993  -1.844359
1994  2.70358
1995  -0.4679078
1996  -0.3884784
1997  1.071326
1998  -2.183832
1999  0.8884075
2000  0.6895282
2001  0.115255
2002  -0.8824835
2003  -0.8973244
2004  1.376817
2005  0.03998852
2006  0.2942266
2007  0.5912287
2008  -0.2521724
2009  -1.727998
2010  0.3387994
2011  -0.2012195
2012  0.6586994
2013  0.2632138
2014  -1.32235
2015  -1.650403