1967.0000000;-1.3217480
1968.0000000;-0.3809050
1969.0000000;-0.9937117
1970.0000000;-1.1582479
1971.0000000;-1.3302623
1972.0000000;-0.4266517
1973.0000000;-1.8499151
1974.0000000;-1.4085603
1975.0000000;-0.8923172
1976.0000000;-1.6647750
1977.0000000;0.1623554
1978.0000000;0.2105511
1979.0000000;-0.7737223
1980.0000000;0.0710255
1981.0000000;-0.4527854
1982.0000000;-0.7008077
1983.0000000;-0.5136575
1984.0000000;0.1893641
1985.0000000;-0.8029690
1986.0000000;-1.4971107
1987.0000000;-0.4972709
1988.0000000;-0.4913941
1989.0000000;-1.4800951
1990.0000000;-1.1221393
1991.0000000;-1.1380136
1992.0000000;-0.9049323
1993.0000000;-0.7746677
1994.0000000;-0.2772630
1995.0000000;0.3445746
1996.0000000;-0.0114503
1997.0000000;-0.3618802
1998.0000000;-1.5742474
1999.0000000;-0.6905032
2000.0000000;-0.9020791
2001.0000000;0.2670621
2002.0000000;-0.8209960
2003.0000000;-2.2838356
2004.0000000;-2.1569524
2005.0000000;-2.1247478
2006.0000000;-1.5703493
2007.0000000;-0.9560301
2008.0000000;-0.9891022
2009.0000000;-1.7973359
2010.0000000;-0.3384077
2011.0000000;-1.9593185
2012.0000000;-1.6204923
2013.0000000;-0.3696268
2014.0000000;-0.6323119
2015.0000000;-1.0286169