1967.0000000;-0.9748296
1968.0000000;0.4882624
1969.0000000;-0.1550152
1970.0000000;-0.6439636
1971.0000000;-0.8749795
1972.0000000;0.0287542
1973.0000000;-0.9404768
1974.0000000;-0.6454836
1975.0000000;0.1617705
1976.0000000;-0.6198864
1977.0000000;0.3176376
1978.0000000;0.3493741
1979.0000000;-0.4763357
1980.0000000;-0.0576704
1981.0000000;-0.4377582
1982.0000000;-0.3685017
1983.0000000;-0.2866133
1984.0000000;0.6253216
1985.0000000;-0.3001324
1986.0000000;-1.2189791
1987.0000000;-0.5274329
1988.0000000;-0.1816340
1989.0000000;-1.3995590
1990.0000000;-0.6127683
1991.0000000;-1.0009465
1992.0000000;-0.6882293
1993.0000000;-0.6458114
1994.0000000;-0.4197350
1995.0000000;0.4088900
1996.0000000;-0.0943082
1997.0000000;-0.3162695
1998.0000000;-1.3279629
1999.0000000;-0.5581406
2000.0000000;-0.8497581
2001.0000000;0.4373824
2002.0000000;-0.0677886
2003.0000000;-2.3099277
2004.0000000;-1.9592656
2005.0000000;-1.9855945
2006.0000000;-1.6565633
2007.0000000;-0.8537838
2008.0000000;-0.7150572
2009.0000000;-1.8644643
2010.0000000;-0.4663255
2011.0000000;-1.9663233
2012.0000000;-1.7098179
2013.0000000;-0.4742148
2014.0000000;-0.7070572
2015.0000000;-1.5348072