1967.0000000;-0.5182654
1968.0000000;0.0796238
1969.0000000;-0.9244848
1970.0000000;-0.4069244
1971.0000000;-1.1579820
1972.0000000;-0.4592273
1973.0000000;-0.7543986
1974.0000000;-1.3165630
1975.0000000;0.1075335
1976.0000000;-1.8598310
1977.0000000;0.4505472
1978.0000000;0.2565829
1979.0000000;-0.3463639
1980.0000000;0.1438991
1981.0000000;-0.1663114
1982.0000000;-0.2393566
1983.0000000;-0.2202657
1984.0000000;0.5248156
1985.0000000;-0.4680144
1986.0000000;-1.6496452
1987.0000000;-0.7315418
1988.0000000;-0.5512512
1989.0000000;-1.7407116
1990.0000000;-1.6142079
1991.0000000;-1.1445243
1992.0000000;-1.2966112
1993.0000000;-1.0299962
1994.0000000;-0.4005919
1995.0000000;0.6146147
1996.0000000;-0.0591467
1997.0000000;-0.7926732
1998.0000000;-1.8232601
1999.0000000;-0.9449967
2000.0000000;-1.2526066
2001.0000000;0.3762480
2002.0000000;-1.5657282
2003.0000000;-2.6408203
2004.0000000;-2.2345879
2005.0000000;-2.5633988
2006.0000000;-1.9483446
2007.0000000;-1.9571359
2008.0000000;-1.8432736
2009.0000000;-3.1287806
2010.0000000;-1.6485013
2011.0000000;-3.4345570
2012.0000000;-2.5400841
2013.0000000;-1.2049592
2014.0000000;-1.4296244
2015.0000000;-2.9751334