1967.0000000;-1.5125897
1968.0000000;0.6915090
1969.0000000;-0.4297947
1970.0000000;-0.7112864
1971.0000000;-0.7607781
1972.0000000;0.1377482
1973.0000000;-1.2213138
1974.0000000;-1.0051494
1975.0000000;-0.3003634
1976.0000000;-1.2685618
1977.0000000;0.4213961
1978.0000000;0.2487227
1979.0000000;-0.9238523
1980.0000000;-0.4113216
1981.0000000;-0.6796297
1982.0000000;-0.9896662
1983.0000000;-0.2759497
1984.0000000;0.7560428
1985.0000000;-0.4048626
1986.0000000;-1.2661350
1987.0000000;-0.3647582
1988.0000000;-0.4064177
1989.0000000;-1.5177540
1990.0000000;-0.5158510
1991.0000000;-1.2942421
1992.0000000;-1.0671189
1993.0000000;-0.5404692
1994.0000000;-0.3399665
1995.0000000;0.2097481
1996.0000000;-0.2430491
1997.0000000;-0.4386321
1998.0000000;-1.5519488
1999.0000000;-0.3833012
2000.0000000;-0.8724538
2001.0000000;0.5298005
2002.0000000;-0.2313122
2003.0000000;-2.2123735
2004.0000000;-1.9987261
2005.0000000;-2.0214939
2006.0000000;-1.6838133
2007.0000000;-1.2764230
2008.0000000;-1.0243124
2009.0000000;-1.8039987
2010.0000000;-0.8367434
2011.0000000;-1.9470613
2012.0000000;-1.7382243
2013.0000000;-0.5190623
2014.0000000;-0.7298729
2015.0000000;-1.6095833