1967.0000000;-1.4193352
1968.0000000;-0.0646410
1969.0000000;-0.1759193
1970.0000000;-1.1481986
1971.0000000;-1.1643131
1972.0000000;-0.4230907
1973.0000000;-1.3243117
1974.0000000;-1.1661408
1975.0000000;-0.1978209
1976.0000000;-0.6930430
1977.0000000;0.5840024
1978.0000000;0.4890991
1979.0000000;-0.8577182
1980.0000000;0.2939541
1981.0000000;-0.1257783
1982.0000000;-0.5875797
1983.0000000;-0.6280474
1984.0000000;0.4393846
1985.0000000;-0.1838081
1986.0000000;-1.3649168
1987.0000000;-0.8694437
1988.0000000;-0.7732918
1989.0000000;-1.5847769
1990.0000000;-1.6431063
1991.0000000;-1.6588681
1992.0000000;-1.7406516
1993.0000000;-0.7162163
1994.0000000;-0.5516236
1995.0000000;0.3082104
1996.0000000;-0.3933749
1997.0000000;-0.9769992
1998.0000000;-1.8467623
1999.0000000;-0.9015620
2000.0000000;-1.3302898
2001.0000000;0.6948317
2002.0000000;-0.3189184
2003.0000000;-2.4260917
2004.0000000;-1.9103061
2005.0000000;-1.8750768
2006.0000000;-1.6468195
2007.0000000;-1.4227198
2008.0000000;-1.2311590
2009.0000000;-1.7533178
2010.0000000;-1.2314599
2011.0000000;-2.0155320
2012.0000000;-2.0732937
2013.0000000;-1.1467985
2014.0000000;-1.3170301
2015.0000000;-2.0712872