1967.0000000;-0.7928919
1968.0000000;-0.0701602
1969.0000000;-0.5354610
1970.0000000;-0.3269180
1971.0000000;-1.2360375
1972.0000000;-0.4820470
1973.0000000;-0.7080787
1974.0000000;-0.6772177
1975.0000000;-0.4217659
1976.0000000;-1.1760904
1977.0000000;-0.2884463
1978.0000000;0.3307039
1979.0000000;-0.2581088
1980.0000000;0.1964323
1981.0000000;0.0512868
1982.0000000;-0.0762256
1983.0000000;-0.2650828
1984.0000000;1.2116978
1985.0000000;0.5388516
1986.0000000;-1.2005519
1987.0000000;-0.2231045
1988.0000000;0.4236833
1989.0000000;-1.2701334
1990.0000000;-1.2284675
1991.0000000;-1.4886061
1992.0000000;-1.3227109
1993.0000000;-0.6152951
1994.0000000;-0.3727823
1995.0000000;0.7341801
1996.0000000;0.0364680
1997.0000000;-0.6878363
1998.0000000;-1.4634163
1999.0000000;-0.6891110
2000.0000000;-0.7862983
2001.0000000;0.7704238
2002.0000000;-0.2645074
2003.0000000;-2.1763129
2004.0000000;-1.7295275
2005.0000000;-1.7625370
2006.0000000;-1.2319763
2007.0000000;-0.6561501
2008.0000000;-1.2275767
2009.0000000;-1.9910635
2010.0000000;-0.3800074
2011.0000000;-1.8639948
2012.0000000;-1.9708433
2013.0000000;-0.6308681
2014.0000000;-0.8285234
2015.0000000;-1.6784116