1967.0000000;-1.1884480
1968.0000000;-0.5253989
1969.0000000;-1.2088962
1970.0000000;-1.1676081
1971.0000000;-1.5315571
1972.0000000;-0.4344592
1973.0000000;-1.7535203
1974.0000000;-1.1940098
1975.0000000;-0.9119430
1976.0000000;-1.4340978
1977.0000000;-0.1881246
1978.0000000;-0.0891320
1979.0000000;-0.9068913
1980.0000000;-0.2248684
1981.0000000;-0.6863989
1982.0000000;-1.0995421
1983.0000000;-0.4529501
1984.0000000;0.2380907
1985.0000000;-0.7516571
1986.0000000;-1.5449400
1987.0000000;-0.8117908
1988.0000000;-0.5313489
1989.0000000;-1.3791816
1990.0000000;-0.9972538
1991.0000000;-1.1183697
1992.0000000;-0.8725343
1993.0000000;-0.7328234
1994.0000000;-0.9200137
1995.0000000;0.1743979
1996.0000000;-0.1169406
1997.0000000;-0.5993431
1998.0000000;-1.5908835
1999.0000000;-0.7059489
2000.0000000;-1.0465683
2001.0000000;0.2107572
2002.0000000;-0.6295165
2003.0000000;-2.4774151
2004.0000000;-2.0010917
2005.0000000;-2.0577714
2006.0000000;-1.7671483
2007.0000000;-1.2534354
2008.0000000;-1.2538111
2009.0000000;-2.2423303
2010.0000000;-0.5681150
2011.0000000;-2.3427868
2012.0000000;-2.0380962
2013.0000000;-0.7430161
2014.0000000;-0.9741595
2015.0000000;-2.2064826