1967.0000000;-0.3253486
1968.0000000;0.5895208
1969.0000000;-0.8033971
1970.0000000;-0.4548863
1971.0000000;-0.5083750
1972.0000000;-0.6926934
1973.0000000;-0.8127306
1974.0000000;-0.9601612
1975.0000000;-0.3400206
1976.0000000;-1.2551682
1977.0000000;0.4520919
1978.0000000;0.3352345
1979.0000000;-0.0666112
1980.0000000;0.6342807
1981.0000000;0.1531645
1982.0000000;-0.1984334
1983.0000000;-0.0241848
1984.0000000;1.4633188
1985.0000000;1.0872973
1986.0000000;-1.3921914
1987.0000000;0.4779979
1988.0000000;0.3785919
1989.0000000;-0.8691758
1990.0000000;-1.8232555
1991.0000000;-1.1406271
1992.0000000;-1.2151871
1993.0000000;-0.5687464
1994.0000000;-0.1075105
1995.0000000;0.9614475
1996.0000000;0.0788815
1997.0000000;-0.6727957
1998.0000000;-1.7296380
1999.0000000;-0.4297642
2000.0000000;-0.7748240
2001.0000000;0.7854576
2002.0000000;-0.3272999
2003.0000000;-2.3781881
2004.0000000;-1.7867779
2005.0000000;-1.7986367
2006.0000000;-1.0880098
2007.0000000;-0.4306307
2008.0000000;-1.3404124
2009.0000000;-2.5216951
2010.0000000;-0.7600961
2011.0000000;-2.2140312
2012.0000000;-2.2851319
2013.0000000;-0.7595415
2014.0000000;-0.9547138
2015.0000000;-2.0635486