1967.0000000;-1.6860211
1968.0000000;0.0302416
1969.0000000;-0.6547242
1970.0000000;-1.3751458
1971.0000000;-1.0200782
1972.0000000;-0.2373749
1973.0000000;-1.5296052
1974.0000000;-1.4331695
1975.0000000;-1.0685871
1976.0000000;-1.3105382
1977.0000000;0.8858522
1978.0000000;0.5105562
1979.0000000;-0.2980636
1980.0000000;-0.1232783
1981.0000000;-1.1485926
1982.0000000;-0.5761728
1983.0000000;-0.2993731
1984.0000000;-0.0102081
1985.0000000;-1.2235708
1986.0000000;-1.4158447
1987.0000000;-1.0412216
1988.0000000;-0.6159652
1989.0000000;-1.6606334
1990.0000000;-1.3802934
1991.0000000;-1.1252031
1992.0000000;-0.9048995
1993.0000000;-0.9434179
1994.0000000;-0.5574594
1995.0000000;-0.4492792
1996.0000000;-0.5193194
1997.0000000;-0.9128098
1998.0000000;-1.8656461
1999.0000000;-1.4922494
2000.0000000;-1.6855917
2001.0000000;0.9324208
2002.0000000;-1.5742128
2003.0000000;-2.7087357
2004.0000000;-2.1270640
2005.0000000;-2.5185678
2006.0000000;-1.9126302
2007.0000000;-2.1930494
2008.0000000;-1.1378491
2009.0000000;-2.3139620
2010.0000000;-0.9117953
2011.0000000;-2.5821543
2012.0000000;-2.1083920
2013.0000000;-1.2638838
2014.0000000;-1.3845439
2015.0000000;-2.5625648