1967.0000000;-1.4063841
1968.0000000;-0.4019742
1969.0000000;-0.3897394
1970.0000000;-0.8969300
1971.0000000;-1.2944217
1972.0000000;0.2113611
1973.0000000;-0.7089268
1974.0000000;-1.2231827
1975.0000000;-0.5511825
1976.0000000;-0.7946615
1977.0000000;0.5730115
1978.0000000;0.2836944
1979.0000000;-1.2569330
1980.0000000;-0.4416561
1981.0000000;-0.3720382
1982.0000000;-1.2126583
1983.0000000;-0.2307115
1984.0000000;0.4099236
1985.0000000;-0.0210203
1986.0000000;-1.3677876
1987.0000000;-1.2754197
1988.0000000;-1.3038943
1989.0000000;-1.6773813
1990.0000000;-1.4671270
1991.0000000;-1.8233459
1992.0000000;-1.3884203
1993.0000000;-0.7959800
1994.0000000;-0.5818073
1995.0000000;-0.0486756
1996.0000000;-1.2646503
1997.0000000;-0.9495163
1998.0000000;-1.9868729
1999.0000000;-0.9503052
2000.0000000;-1.1391033
2001.0000000;0.7007168
2002.0000000;0.1240650
2003.0000000;-2.2250228
2004.0000000;-2.0147274
2005.0000000;-1.8528508
2006.0000000;-1.6429753
2007.0000000;-1.4640362
2008.0000000;-1.0415981
2009.0000000;-1.6083254
2010.0000000;-0.8355006
2011.0000000;-1.8255602
2012.0000000;-1.9738793
2013.0000000;-1.0757904
2014.0000000;-1.2225721
2015.0000000;-1.1514611