1967.0000000;-0.7311907
1968.0000000;-0.0508789
1969.0000000;-0.4646276
1970.0000000;-0.3012922
1971.0000000;-1.1398439
1972.0000000;-0.3444858
1973.0000000;-0.6602460
1974.0000000;-0.4762394
1975.0000000;-0.3829083
1976.0000000;-0.9400192
1977.0000000;-0.1283291
1978.0000000;0.1855812
1979.0000000;-0.2011578
1980.0000000;0.0302616
1981.0000000;-0.0683522
1982.0000000;-0.0867740
1983.0000000;-0.1896668
1984.0000000;1.1274775
1985.0000000;0.4142239
1986.0000000;-1.1221306
1987.0000000;-0.2271857
1988.0000000;0.2511352
1989.0000000;-1.1656229
1990.0000000;-0.8766544
1991.0000000;-1.2912078
1992.0000000;-1.1363946
1993.0000000;-0.5800933
1994.0000000;-0.2884465
1995.0000000;0.6623859
1996.0000000;0.1205167
1997.0000000;-0.5385755
1998.0000000;-1.3687942
1999.0000000;-0.6374339
2000.0000000;-0.7952235
2001.0000000;0.7221589
2002.0000000;-0.1630743
2003.0000000;-2.1084144
2004.0000000;-1.6320220
2005.0000000;-1.7337356
2006.0000000;-1.1584252
2007.0000000;-0.4073140
2008.0000000;-0.9607563
2009.0000000;-1.8897266
2010.0000000;-0.2845581
2011.0000000;-1.6218354
2012.0000000;-1.6803238
2013.0000000;-0.5194376
2014.0000000;-0.6670887
2015.0000000;-1.4267421