1967.0000000;-0.5842391
1968.0000000;0.2134776
1969.0000000;-0.1607845
1970.0000000;-0.0194274
1971.0000000;-0.8487940
1972.0000000;-0.1922966
1973.0000000;-0.5638150
1974.0000000;-0.7866714
1975.0000000;-0.0137668
1976.0000000;-1.1446123
1977.0000000;0.2041356
1978.0000000;0.5259178
1979.0000000;-0.2527397
1980.0000000;0.4672360
1981.0000000;-0.0434250
1982.0000000;-0.2042673
1983.0000000;-0.3339164
1984.0000000;0.7607472
1985.0000000;0.1079745
1986.0000000;-1.4128892
1987.0000000;-0.3086826
1988.0000000;-0.0538273
1989.0000000;-1.1391258
1990.0000000;-1.2896670
1991.0000000;-0.8473451
1992.0000000;-1.1468949
1993.0000000;-0.6819679
1994.0000000;-0.5125990
1995.0000000;0.6909182
1996.0000000;-0.0863176
1997.0000000;-0.6563039
1998.0000000;-1.6150252
1999.0000000;-0.6491068
2000.0000000;-1.0640109
2001.0000000;0.4709045
2002.0000000;-0.7478335
2003.0000000;-2.4612997
2004.0000000;-2.0215082
2005.0000000;-2.1461182
2006.0000000;-1.4781160
2007.0000000;-0.9861236
2008.0000000;-1.1269457
2009.0000000;-2.1458514
2010.0000000;-0.5187272
2011.0000000;-2.1925049
2012.0000000;-2.1467056
2013.0000000;-0.6062607
2014.0000000;-0.8019735
2015.0000000;-2.1412039