1967.0000000;-0.9704066
1968.0000000;0.2609102
1969.0000000;-0.0146347
1970.0000000;-0.6959515
1971.0000000;-0.4134510
1972.0000000;-0.0373376
1973.0000000;-1.0379961
1974.0000000;-0.6494239
1975.0000000;-0.5475354
1976.0000000;-0.3977851
1977.0000000;0.6097466
1978.0000000;0.3606690
1979.0000000;0.0062476
1980.0000000;-0.1098523
1981.0000000;-0.6491149
1982.0000000;-0.2757093
1983.0000000;-0.0816257
1984.0000000;0.0871475
1985.0000000;-0.5481843
1986.0000000;-1.3075039
1987.0000000;-0.5210248
1988.0000000;-0.4756017
1989.0000000;-1.4487706
1990.0000000;-0.5471202
1991.0000000;-0.6788897
1992.0000000;-0.6517617
1993.0000000;-0.5539015
1994.0000000;-0.4561400
1995.0000000;0.1349443
1996.0000000;0.1991279
1997.0000000;-0.2408656
1998.0000000;-1.3062325
1999.0000000;-0.7782948
2000.0000000;-1.3202572
2001.0000000;1.0337212
2002.0000000;-0.4272020
2003.0000000;-1.9979200
2004.0000000;-1.5463165
2005.0000000;-2.0495565
2006.0000000;-1.3472713
2007.0000000;-0.8078391
2008.0000000;-0.5415704
2009.0000000;-1.6680570
2010.0000000;-0.5377640
2011.0000000;-2.0056343
2012.0000000;-1.7050123
2013.0000000;-0.7141246
2014.0000000;-0.7351606
2015.0000000;-1.9677632