1967.0000000;-1.2924800
1968.0000000;0.6852461
1969.0000000;-0.1907012
1970.0000000;-0.5056079
1971.0000000;-0.3556275
1972.0000000;0.2558016
1973.0000000;-1.1600480
1974.0000000;-0.8139167
1975.0000000;-0.0430117
1976.0000000;-1.1487384
1977.0000000;0.4102978
1978.0000000;0.1316450
1979.0000000;-0.6386665
1980.0000000;-0.2957014
1981.0000000;-0.6974797
1982.0000000;-0.7363225
1983.0000000;-0.1568156
1984.0000000;0.7567245
1985.0000000;0.0151600
1986.0000000;-1.2664199
1987.0000000;-0.0232407
1988.0000000;-0.0544869
1989.0000000;-1.5355477
1990.0000000;-0.5056825
1991.0000000;-0.9659106
1992.0000000;-0.9650905
1993.0000000;-0.4589584
1994.0000000;-0.1260035
1995.0000000;0.3968779
1996.0000000;-0.1000046
1997.0000000;-0.2974411
1998.0000000;-1.3771122
1999.0000000;0.0754102
2000.0000000;-0.6802433
2001.0000000;0.5722754
2002.0000000;-0.1458166
2003.0000000;-2.0858457
2004.0000000;-1.9224528
2005.0000000;-1.9213601
2006.0000000;-1.5738182
2007.0000000;-1.1541672
2008.0000000;-0.7130215
2009.0000000;-1.7054977
2010.0000000;-0.7429141
2011.0000000;-1.8709257
2012.0000000;-1.7190504
2013.0000000;-0.3500453
2014.0000000;-0.8468871
2015.0000000;-1.6003504