1967.0000000;-0.7274134
1968.0000000;0.1873204
1969.0000000;-0.2308310
1970.0000000;-0.0104738
1971.0000000;-1.1958703
1972.0000000;-0.2922924
1973.0000000;-0.4609140
1974.0000000;-1.0923154
1975.0000000;0.0790759
1976.0000000;-1.5221869
1977.0000000;0.4402277
1978.0000000;0.6439788
1979.0000000;-0.1855674
1980.0000000;0.6293025
1981.0000000;0.0200286
1982.0000000;-0.1515980
1983.0000000;-0.3901395
1984.0000000;0.7745547
1985.0000000;-0.4382931
1986.0000000;-1.5535326
1987.0000000;-0.5467833
1988.0000000;-0.1862555
1989.0000000;-1.5098085
1990.0000000;-1.6604834
1991.0000000;-1.1662276
1992.0000000;-1.5321064
1993.0000000;-0.7846078
1994.0000000;-0.6887222
1995.0000000;0.6530387
1996.0000000;-0.6179042
1997.0000000;-1.0894223
1998.0000000;-2.0823035
1999.0000000;-0.9899573
2000.0000000;-1.4749811
2001.0000000;0.1771614
2002.0000000;-1.8902884
2003.0000000;-2.9668345
2004.0000000;-2.3041511
2005.0000000;-2.5878117
2006.0000000;-2.0613523
2007.0000000;-1.7509360
2008.0000000;-1.7431669
2009.0000000;-2.7756133
2010.0000000;-0.9548596
2011.0000000;-2.7363932
2012.0000000;-2.5053594
2013.0000000;-0.9634875
2014.0000000;-0.9503427
2015.0000000;-2.5084453