1967.0000000;-1.1587365
1968.0000000;0.4510898
1969.0000000;-0.6268928
1970.0000000;-0.2468946
1971.0000000;-1.4584689
1972.0000000;-0.4331427
1973.0000000;-0.8169474
1974.0000000;-0.6402265
1975.0000000;-0.6049743
1976.0000000;-1.3653821
1977.0000000;-0.5061674
1978.0000000;0.1899503
1979.0000000;-0.4806379
1980.0000000;0.0105205
1981.0000000;-0.1661379
1982.0000000;-0.2679956
1983.0000000;-0.1733183
1984.0000000;1.5197878
1985.0000000;0.8773221
1986.0000000;-1.2765743
1987.0000000;0.0587339
1988.0000000;0.7293889
1989.0000000;-1.2940120
1990.0000000;-1.5341806
1991.0000000;-1.6764627
1992.0000000;-1.3193527
1993.0000000;-0.7988865
1994.0000000;-0.5204778
1995.0000000;0.8757877
1996.0000000;-0.1549030
1997.0000000;-0.7789295
1998.0000000;-1.5967314
1999.0000000;-0.7111706
2000.0000000;-1.0721121
2001.0000000;0.9466641
2002.0000000;-0.4824175
2003.0000000;-2.4786060
2004.0000000;-1.9516566
2005.0000000;-1.9920238
2006.0000000;-1.4177407
2007.0000000;-0.8151693
2008.0000000;-1.4634751
2009.0000000;-2.1151934
2010.0000000;-0.8088636
2011.0000000;-2.1018763
2012.0000000;-2.3011847
2013.0000000;-0.8860865
2014.0000000;-0.7030911
2015.0000000;-1.7572758