1967.0000000;-1.3069646
1968.0000000;0.8817884
1969.0000000;-0.2735086
1970.0000000;-0.7485074
1971.0000000;-0.4439101
1972.0000000;0.1267851
1973.0000000;-1.0098615
1974.0000000;-0.7690930
1975.0000000;-0.2456986
1976.0000000;-0.8305033
1977.0000000;0.5351037
1978.0000000;0.1621298
1979.0000000;-0.3771394
1980.0000000;-0.3628577
1981.0000000;-0.8958281
1982.0000000;-0.8499225
1983.0000000;-0.1981446
1984.0000000;0.4527383
1985.0000000;-0.7315447
1986.0000000;-1.2562821
1987.0000000;-0.3989168
1988.0000000;-0.4393635
1989.0000000;-1.5129070
1990.0000000;-0.4515954
1991.0000000;-1.0658042
1992.0000000;-0.6560299
1993.0000000;-0.7621926
1994.0000000;-0.4999461
1995.0000000;0.3946370
1996.0000000;0.0039598
1997.0000000;-0.3192751
1998.0000000;-1.5306959
1999.0000000;-0.8709046
2000.0000000;-1.1313225
2001.0000000;0.4514377
2002.0000000;-0.1450393
2003.0000000;-1.9435334
2004.0000000;-1.8936732
2005.0000000;-2.0632653
2006.0000000;-1.3944072
2007.0000000;-1.0881732
2008.0000000;-0.5982095
2009.0000000;-1.4666169
2010.0000000;-0.6746781
2011.0000000;-1.8646739
2012.0000000;-1.6435164
2013.0000000;-0.6553725
2014.0000000;-0.7675805
2015.0000000;-1.4485455