1967.0000000;-0.5271420
1968.0000000;0.3558458
1969.0000000;-0.0225417
1970.0000000;-0.3575555
1971.0000000;-0.4312867
1972.0000000;0.1367212
1973.0000000;-1.0051641
1974.0000000;-0.4947611
1975.0000000;0.1631857
1976.0000000;-0.4297676
1977.0000000;0.5728222
1978.0000000;0.6326823
1979.0000000;-0.0197146
1980.0000000;0.3475282
1981.0000000;0.0825018
1982.0000000;-0.0646671
1983.0000000;-0.1836478
1984.0000000;0.3743057
1985.0000000;-0.1346171
1986.0000000;-1.0661771
1987.0000000;-0.2902955
1988.0000000;0.2292765
1989.0000000;-1.1369331
1990.0000000;-0.9000639
1991.0000000;-0.5140850
1992.0000000;-0.4739756
1993.0000000;-0.4074277
1994.0000000;-0.1701116
1995.0000000;0.4487176
1996.0000000;-0.0137578
1997.0000000;-0.5845526
1998.0000000;-1.2950662
1999.0000000;-0.7406678
2000.0000000;-0.8855813
2001.0000000;0.8396673
2002.0000000;-0.4663313
2003.0000000;-2.5364933
2004.0000000;-1.3855653
2005.0000000;-1.6310405
2006.0000000;-1.6155077
2007.0000000;-0.6419002
2008.0000000;-0.4461315
2009.0000000;-1.8136559
2010.0000000;-0.3033099
2011.0000000;-1.5026258
2012.0000000;-1.0548943
2013.0000000;-0.1775942
2014.0000000;-0.1694441
2015.0000000;-1.1147385