1967.0000000;-1.2075033
1968.0000000;0.2595972
1969.0000000;-0.3220484
1970.0000000;-0.9237875
1971.0000000;-0.5703824
1972.0000000;-0.0830939
1973.0000000;-1.1886044
1974.0000000;-1.1132593
1975.0000000;-0.8300504
1976.0000000;-1.1899908
1977.0000000;0.8248373
1978.0000000;0.4743481
1979.0000000;0.0270859
1980.0000000;-0.1139174
1981.0000000;-0.8771943
1982.0000000;-0.4295328
1983.0000000;-0.1178541
1984.0000000;0.1872905
1985.0000000;-0.6977573
1986.0000000;-1.2670681
1987.0000000;-0.6096328
1988.0000000;-0.2391711
1989.0000000;-1.6204787
1990.0000000;-0.9741042
1991.0000000;-0.8513035
1992.0000000;-0.7135469
1993.0000000;-0.8055828
1994.0000000;-0.4167551
1995.0000000;0.0223361
1996.0000000;0.0514072
1997.0000000;-0.3563008
1998.0000000;-1.5090373
1999.0000000;-0.9752417
2000.0000000;-1.4655621
2001.0000000;0.8004137
2002.0000000;-1.1087863
2003.0000000;-2.2811823
2004.0000000;-1.9795606
2005.0000000;-2.2348027
2006.0000000;-1.6398580
2007.0000000;-1.6730967
2008.0000000;-0.7868162
2009.0000000;-1.8174185
2010.0000000;-0.6968096
2011.0000000;-2.1736243
2012.0000000;-1.8355489
2013.0000000;-0.8349913
2014.0000000;-1.1448027
2015.0000000;-2.0489018