1967.0000000;-0.6931301
1968.0000000;0.2477109
1969.0000000;-0.3557518
1970.0000000;-0.5835671
1971.0000000;-0.7400430
1972.0000000;-0.0921022
1973.0000000;-1.4218950
1974.0000000;-0.8523557
1975.0000000;0.0453712
1976.0000000;-1.0737555
1977.0000000;0.4760998
1978.0000000;0.5973527
1979.0000000;-0.2086507
1980.0000000;0.3875442
1981.0000000;0.0530648
1982.0000000;-0.1508444
1983.0000000;-0.3262308
1984.0000000;0.4718292
1985.0000000;-0.5072788
1986.0000000;-1.2878025
1987.0000000;-0.3152670
1988.0000000;0.1094524
1989.0000000;-1.4456441
1990.0000000;-1.2601271
1991.0000000;-0.7519804
1992.0000000;-0.6716607
1993.0000000;-0.5955443
1994.0000000;-0.2805185
1995.0000000;0.5500708
1996.0000000;-0.2192250
1997.0000000;-0.7343218
1998.0000000;-1.5213525
1999.0000000;-0.7834647
2000.0000000;-0.9494399
2001.0000000;0.7871688
2002.0000000;-0.8818928
2003.0000000;-2.6596937
2004.0000000;-1.9855326
2005.0000000;-2.1184711
2006.0000000;-1.9022599
2007.0000000;-1.3689077
2008.0000000;-0.9492266
2009.0000000;-2.3673730
2010.0000000;-0.7296180
2011.0000000;-2.4506588
2012.0000000;-2.0716577
2013.0000000;-0.6015308
2014.0000000;-1.0226629
2015.0000000;-2.4672103