1967.0000000;-0.9989387
1968.0000000;-0.4607269
1969.0000000;-0.8521572
1970.0000000;-0.7004119
1971.0000000;-1.5320852
1972.0000000;-0.6647268
1973.0000000;-1.3214327
1974.0000000;-0.8518176
1975.0000000;-0.5817499
1976.0000000;-1.4803783
1977.0000000;0.0925083
1978.0000000;0.4541807
1979.0000000;-0.1407517
1980.0000000;0.4828580
1981.0000000;0.1614152
1982.0000000;0.1540820
1983.0000000;-0.1802647
1984.0000000;0.8733084
1985.0000000;0.3742377
1986.0000000;-1.2459819
1987.0000000;0.0703650
1988.0000000;0.0378729
1989.0000000;-1.5062399
1990.0000000;-1.6743250
1991.0000000;-1.3217157
1992.0000000;-1.6354771
1993.0000000;-0.5752530
1994.0000000;-0.3077738
1995.0000000;0.8187375
1996.0000000;-0.2795570
1997.0000000;-0.9078073
1998.0000000;-1.6182284
1999.0000000;-0.7190092
2000.0000000;-0.7517143
2001.0000000;0.6285806
2002.0000000;-0.9116663
2003.0000000;-2.4109297
2004.0000000;-1.7783129
2005.0000000;-2.1328864
2006.0000000;-1.3145375
2007.0000000;-1.0781039
2008.0000000;-1.2623563
2009.0000000;-2.2494617
2010.0000000;-0.9606881
2011.0000000;-2.2873855
2012.0000000;-2.0993018
2013.0000000;-0.4918853
2014.0000000;-0.9352068
2015.0000000;-2.1227460