1967.0000000;-0.3269228
1968.0000000;-0.3595277
1969.0000000;-0.7338459
1970.0000000;-0.7041296
1971.0000000;-1.2866812
1972.0000000;-0.5436168
1973.0000000;-1.2841892
1974.0000000;-0.6095495
1975.0000000;-0.3003990
1976.0000000;-1.1850393
1977.0000000;0.2309337
1978.0000000;0.6497690
1979.0000000;0.1989869
1980.0000000;0.7534446
1981.0000000;0.3795495
1982.0000000;0.3256766
1983.0000000;-0.1759380
1984.0000000;0.3750407
1985.0000000;-0.4193858
1986.0000000;-1.2033010
1987.0000000;-0.0093500
1988.0000000;0.1483232
1989.0000000;-1.4206976
1990.0000000;-1.4033735
1991.0000000;-0.6516142
1992.0000000;-1.1641152
1993.0000000;-0.6319833
1994.0000000;-0.9687757
1995.0000000;0.5226148
1996.0000000;-0.7143677
1997.0000000;-1.0858625
1998.0000000;-1.7249897
1999.0000000;-1.2110878
2000.0000000;-1.5290911
2001.0000000;-0.1120577
2002.0000000;-1.6371454
2003.0000000;-3.1219134
2004.0000000;-1.9280192
2005.0000000;-2.4077892
2006.0000000;-1.0890400
2007.0000000;-1.0815411
2008.0000000;-1.1401889
2009.0000000;-2.9044139
2010.0000000;-1.0714705
2011.0000000;-3.0058761
2012.0000000;-2.6624539
2013.0000000;-1.1857514
2014.0000000;-1.9398818
2015.0000000;-2.9823093