1967.0000000;-0.7501378
1968.0000000;0.2486793
1969.0000000;-0.1979452
1970.0000000;-0.6414815
1971.0000000;-0.7088668
1972.0000000;-0.0518267
1973.0000000;-1.3108093
1974.0000000;-0.8012354
1975.0000000;0.0113404
1976.0000000;-0.9674163
1977.0000000;0.4972776
1978.0000000;0.5004216
1979.0000000;-0.2212126
1980.0000000;0.2639266
1981.0000000;-0.0792783
1982.0000000;-0.1884166
1983.0000000;-0.3389282
1984.0000000;0.2738267
1985.0000000;-0.4185901
1986.0000000;-1.1784146
1987.0000000;-0.3460680
1988.0000000;0.0773726
1989.0000000;-1.4726481
1990.0000000;-0.9707092
1991.0000000;-0.6676437
1992.0000000;-0.5936012
1993.0000000;-0.5142886
1994.0000000;-0.2461228
1995.0000000;0.3588601
1996.0000000;0.0763074
1997.0000000;-0.3197967
1998.0000000;-1.2500787
1999.0000000;-0.5115561
2000.0000000;-0.6812522
2001.0000000;0.7785534
2002.0000000;-0.1242587
2003.0000000;-2.1608303
2004.0000000;-1.7888389
2005.0000000;-1.9487967
2006.0000000;-1.4393604
2007.0000000;-0.6424399
2008.0000000;-0.3219261
2009.0000000;-1.6148975
2010.0000000;-0.4072136
2011.0000000;-1.6128777
2012.0000000;-1.4306297
2013.0000000;-0.3238491
2014.0000000;-0.6427084
2015.0000000;-1.4985383