1967.0000000;-1.4911051
1968.0000000;-0.2262186
1969.0000000;-0.4152330
1970.0000000;-1.1997623
1971.0000000;-1.4266622
1972.0000000;-0.1410557
1973.0000000;-1.0685128
1974.0000000;-1.1878643
1975.0000000;-0.2275206
1976.0000000;-0.5665327
1977.0000000;0.5860154
1978.0000000;0.4582044
1979.0000000;-1.1712157
1980.0000000;-0.0142555
1981.0000000;-0.1982433
1982.0000000;-0.9703489
1983.0000000;-1.1298246
1984.0000000;0.5506004
1985.0000000;-0.6361206
1986.0000000;-1.4627275
1987.0000000;-1.3231869
1988.0000000;-1.0932388
1989.0000000;-1.7295543
1990.0000000;-1.7525213
1991.0000000;-1.9314044
1992.0000000;-1.8162483
1993.0000000;-0.8267380
1994.0000000;-0.7847144
1995.0000000;0.2316891
1996.0000000;-1.1294699
1997.0000000;-1.1518611
1998.0000000;-2.1476860
1999.0000000;-1.0814059
2000.0000000;-1.3133774
2001.0000000;0.7178446
2002.0000000;0.0932728
2003.0000000;-2.4430089
2004.0000000;-2.0898302
2005.0000000;-2.0020285
2006.0000000;-1.7032789
2007.0000000;-1.6607407
2008.0000000;-1.1940958
2009.0000000;-1.8713424
2010.0000000;-1.2683773
2011.0000000;-2.0691142
2012.0000000;-2.1426015
2013.0000000;-1.4584551
2014.0000000;-1.2632973
2015.0000000;-1.6497115