1967.0000000;-1.4238175
1968.0000000;-0.2256079
1969.0000000;-0.3500401
1970.0000000;-1.1484489
1971.0000000;-1.2855779
1972.0000000;-0.0600210
1973.0000000;-1.0826461
1974.0000000;-1.1579938
1975.0000000;-0.2398975
1976.0000000;-0.5189430
1977.0000000;0.5723437
1978.0000000;0.4844491
1979.0000000;-1.0618390
1980.0000000;0.0126511
1981.0000000;-0.1960526
1982.0000000;-0.9241870
1983.0000000;-0.9943253
1984.0000000;0.6346185
1985.0000000;-0.3504909
1986.0000000;-1.4142973
1987.0000000;-1.1785200
1988.0000000;-0.9530163
1989.0000000;-1.6806487
1990.0000000;-1.7325008
1991.0000000;-1.8947569
1992.0000000;-1.7844589
1993.0000000;-0.7316143
1994.0000000;-0.6916468
1995.0000000;0.2991006
1996.0000000;-1.0342681
1997.0000000;-1.1037922
1998.0000000;-2.1139686
1999.0000000;-0.9928387
2000.0000000;-1.2375861
2001.0000000;0.7058145
2002.0000000;-0.0136621
2003.0000000;-2.4109659
2004.0000000;-2.0308151
2005.0000000;-1.9339364
2006.0000000;-1.6538882
2007.0000000;-1.5818226
2008.0000000;-1.1409427
2009.0000000;-1.7999363
2010.0000000;-1.1019595
2011.0000000;-1.9725078
2012.0000000;-2.1082816
2013.0000000;-1.3894949
2014.0000000;-1.2485719
2015.0000000;-1.4738488