1967.0000000;-0.5669799
1968.0000000;-0.1296739
1969.0000000;-0.5547845
1970.0000000;-0.6641361
1971.0000000;-0.7656812
1972.0000000;-0.3376183
1973.0000000;-1.4043403
1974.0000000;-0.7442029
1975.0000000;-0.4629560
1976.0000000;-0.9742162
1977.0000000;0.3042554
1978.0000000;0.4811561
1979.0000000;-0.1027543
1980.0000000;0.2908273
1981.0000000;0.0495145
1982.0000000;-0.1694257
1983.0000000;-0.2240394
1984.0000000;0.3188807
1985.0000000;-0.2889766
1986.0000000;-1.4532180
1987.0000000;-0.3578360
1988.0000000;-0.1062558
1989.0000000;-1.3600402
1990.0000000;-0.9909067
1991.0000000;-0.6538075
1992.0000000;-0.5787616
1993.0000000;-0.5669348
1994.0000000;-0.4436967
1995.0000000;0.4812315
1996.0000000;-0.1185821
1997.0000000;-0.7951922
1998.0000000;-1.6262431
1999.0000000;-0.8084217
2000.0000000;-1.1286316
2001.0000000;0.3479693
2002.0000000;-1.2293446
2003.0000000;-2.9632435
2004.0000000;-1.5304842
2005.0000000;-2.0570927
2006.0000000;-1.6938438
2007.0000000;-0.9714009
2008.0000000;-0.9559723
2009.0000000;-2.0718017
2010.0000000;-0.3572526
2011.0000000;-1.9167032
2012.0000000;-1.4726349
2013.0000000;-0.2718387
2014.0000000;-0.3885675
2015.0000000;-1.6338298