1967.0000000;-0.6324080
1968.0000000;0.3054769
1969.0000000;-0.0847035
1970.0000000;0.0990088
1971.0000000;-0.7014110
1972.0000000;-0.2042987
1973.0000000;-0.4493761
1974.0000000;-0.8594991
1975.0000000;0.0918707
1976.0000000;-1.2847965
1977.0000000;0.4325999
1978.0000000;0.6156399
1979.0000000;-0.0331240
1980.0000000;0.6436269
1981.0000000;-0.0110962
1982.0000000;-0.1710845
1983.0000000;-0.2403269
1984.0000000;0.7857704
1985.0000000;0.0482023
1986.0000000;-1.3225149
1987.0000000;-0.2799270
1988.0000000;0.1118693
1989.0000000;-1.4172335
1990.0000000;-1.2533305
1991.0000000;-0.6979471
1992.0000000;-1.1113230
1993.0000000;-0.6909948
1994.0000000;-0.3271365
1995.0000000;0.6971481
1996.0000000;-0.1171748
1997.0000000;-0.5373853
1998.0000000;-1.6061774
1999.0000000;-0.6367946
2000.0000000;-1.0273161
2001.0000000;0.3266221
2002.0000000;-1.0377083
2003.0000000;-2.3634698
2004.0000000;-2.0213518
2005.0000000;-2.1422195
2006.0000000;-1.4209440
2007.0000000;-1.2158144
2008.0000000;-1.2448548
2009.0000000;-2.1139388
2010.0000000;-0.6177130
2011.0000000;-2.1432157
2012.0000000;-2.1469290
2013.0000000;-0.6697761
2014.0000000;-0.9311509
2015.0000000;-2.1380448