1967.0000000;-0.9194717
1968.0000000;0.3088919
1969.0000000;-0.1359579
1970.0000000;-0.6725202
1971.0000000;-0.6906366
1972.0000000;-0.0042034
1973.0000000;-1.2167463
1974.0000000;-0.8312185
1975.0000000;0.0589651
1976.0000000;-0.7506537
1977.0000000;0.3580936
1978.0000000;0.4057516
1979.0000000;-0.4797815
1980.0000000;0.0412159
1981.0000000;-0.3149474
1982.0000000;-0.2622853
1983.0000000;-0.3344796
1984.0000000;0.4231608
1985.0000000;-0.3988912
1986.0000000;-1.2323830
1987.0000000;-0.4534846
1988.0000000;-0.1245705
1989.0000000;-1.3885661
1990.0000000;-0.8542308
1991.0000000;-0.8475481
1992.0000000;-0.6513767
1993.0000000;-0.5567741
1994.0000000;-0.4440399
1995.0000000;0.2940061
1996.0000000;-0.0838663
1997.0000000;-0.4592731
1998.0000000;-1.4168963
1999.0000000;-0.5640043
2000.0000000;-0.8988562
2001.0000000;0.6558654
2002.0000000;-0.0874857
2003.0000000;-2.4346976
2004.0000000;-1.9135472
2005.0000000;-1.9855894
2006.0000000;-1.7093482
2007.0000000;-0.7863559
2008.0000000;-0.6117231
2009.0000000;-1.9954206
2010.0000000;-0.5023501
2011.0000000;-2.0199232
2012.0000000;-1.6635320
2013.0000000;-0.4500476
2014.0000000;-0.6618916
2015.0000000;-1.7638814