1967.0000000;-0.7078702
1968.0000000;0.2781826
1969.0000000;-0.1315862
1970.0000000;-0.5237652
1971.0000000;-0.7999932
1972.0000000;-0.1185090
1973.0000000;-1.1332282
1974.0000000;-0.8967160
1975.0000000;0.0299174
1976.0000000;-0.9849356
1977.0000000;0.5068054
1978.0000000;0.6013290
1979.0000000;-0.2066884
1980.0000000;0.3775439
1981.0000000;0.0053413
1982.0000000;-0.1554269
1983.0000000;-0.3426372
1984.0000000;0.4223950
1985.0000000;-0.4460560
1986.0000000;-1.2157897
1987.0000000;-0.3597167
1988.0000000;0.0790422
1989.0000000;-1.4989729
1990.0000000;-1.1970249
1991.0000000;-0.8138290
1992.0000000;-0.6826898
1993.0000000;-0.5740105
1994.0000000;-0.2935025
1995.0000000;0.3822991
1996.0000000;-0.0851445
1997.0000000;-0.4990178
1998.0000000;-1.4902254
1999.0000000;-0.6793207
2000.0000000;-0.7972812
2001.0000000;0.6897351
2002.0000000;-0.6562121
2003.0000000;-2.5055161
2004.0000000;-1.9270205
2005.0000000;-2.0442233
2006.0000000;-1.7624925
2007.0000000;-1.2937731
2008.0000000;-0.8963146
2009.0000000;-2.1526771
2010.0000000;-0.6604328
2011.0000000;-2.2578557
2012.0000000;-1.9311385
2013.0000000;-0.5606152
2014.0000000;-0.9290432
2015.0000000;-2.1841667