1967.0000000;-1.0659920
1968.0000000;0.2053160
1969.0000000;-0.1296720
1970.0000000;-0.9163902
1971.0000000;-0.8467718
1972.0000000;-0.1236295
1973.0000000;-1.1476390
1974.0000000;-0.9796628
1975.0000000;-0.1283441
1976.0000000;-0.4106339
1977.0000000;0.4021852
1978.0000000;0.3945039
1979.0000000;-0.7000223
1980.0000000;0.1685509
1981.0000000;-0.1932935
1982.0000000;-0.7529410
1983.0000000;-0.3731232
1984.0000000;0.8545054
1985.0000000;0.4182305
1986.0000000;-1.2466719
1987.0000000;-0.5895858
1988.0000000;-0.2418602
1989.0000000;-1.4929466
1990.0000000;-1.5966135
1991.0000000;-1.6735741
1992.0000000;-1.6611266
1993.0000000;-0.8571034
1994.0000000;-0.5489560
1995.0000000;0.5045339
1996.0000000;-0.3641375
1997.0000000;-0.9291359
1998.0000000;-1.7558188
1999.0000000;-0.8111448
2000.0000000;-1.1275945
2001.0000000;0.6854610
2002.0000000;-0.1669008
2003.0000000;-2.3078876
2004.0000000;-1.8900669
2005.0000000;-1.7266992
2006.0000000;-1.4450312
2007.0000000;-1.1323688
2008.0000000;-1.0908796
2009.0000000;-1.5504559
2010.0000000;-0.9003048
2011.0000000;-1.7707034
2012.0000000;-1.9600487
2013.0000000;-0.9670092
2014.0000000;-1.1858940
2015.0000000;-1.5915047