1967.0000000;-1.3431474
1968.0000000;0.6397150
1969.0000000;-0.2476139
1970.0000000;-0.5837805
1971.0000000;-0.6489642
1972.0000000;0.2474922
1973.0000000;-1.1807616
1974.0000000;-0.8838543
1975.0000000;0.0507090
1976.0000000;-1.1335548
1977.0000000;0.3907395
1978.0000000;0.3820070
1979.0000000;-0.5524604
1980.0000000;-0.0727291
1981.0000000;-0.5003384
1982.0000000;-0.7482979
1983.0000000;-0.3039173
1984.0000000;0.8652846
1985.0000000;0.0051642
1986.0000000;-1.2812449
1987.0000000;-0.1694098
1988.0000000;0.1981440
1989.0000000;-1.5426540
1990.0000000;-1.0509583
1991.0000000;-1.1437546
1992.0000000;-0.8682114
1993.0000000;-0.5982583
1994.0000000;-0.1967102
1995.0000000;0.4581919
1996.0000000;-0.1538249
1997.0000000;-0.4613932
1998.0000000;-1.5200734
1999.0000000;-0.2217347
2000.0000000;-0.7876086
2001.0000000;0.5805947
2002.0000000;-0.1105428
2003.0000000;-2.2355921
2004.0000000;-2.0180874
2005.0000000;-1.9673085
2006.0000000;-1.6895672
2007.0000000;-1.2122920
2008.0000000;-0.8939505
2009.0000000;-1.8609476
2010.0000000;-0.8002429
2011.0000000;-1.9648451
2012.0000000;-1.9040848
2013.0000000;-0.4363258
2014.0000000;-0.9200681
2015.0000000;-1.7853463