1967.0000000;-0.8619643
1968.0000000;0.1067126
1969.0000000;-0.4826282
1970.0000000;-1.6059626
1971.0000000;-1.2268476
1972.0000000;-0.3369066
1973.0000000;-1.0451721
1974.0000000;-1.1515056
1975.0000000;0.1572368
1976.0000000;-1.0282664
1977.0000000;0.9041760
1978.0000000;0.6425902
1979.0000000;-0.5840534
1980.0000000;0.4240530
1981.0000000;0.0455662
1982.0000000;-0.1532544
1983.0000000;-0.3478923
1984.0000000;0.6536388
1985.0000000;-0.2201678
1986.0000000;-1.4472597
1987.0000000;-0.8863896
1988.0000000;-0.7216050
1989.0000000;-1.8074590
1990.0000000;-1.9073297
1991.0000000;-1.9448571
1992.0000000;-1.8069648
1993.0000000;-1.0369412
1994.0000000;-0.6063775
1995.0000000;0.4465127
1996.0000000;-0.2464822
1997.0000000;-1.0132265
1998.0000000;-2.0021796
1999.0000000;-1.2124428
2000.0000000;-1.3895211
2001.0000000;0.4690047
2002.0000000;-0.5462757
2003.0000000;-2.2814062
2004.0000000;-1.9231170
2005.0000000;-2.3217657
2006.0000000;-1.7890927
2007.0000000;-1.4926947
2008.0000000;-1.4015051
2009.0000000;-1.8283470
2010.0000000;-1.0797036
2011.0000000;-1.8118320
2012.0000000;-2.0099788
2013.0000000;-0.9023099
2014.0000000;-1.0799359
2015.0000000;-1.4984397