1967.0000000;-0.9475764
1968.0000000;0.7804360
1969.0000000;-0.7517242
1970.0000000;-0.3114116
1971.0000000;-1.2104346
1972.0000000;-0.4510939
1973.0000000;-0.6767659
1974.0000000;-0.6895645
1975.0000000;-0.9145589
1976.0000000;-1.3201830
1977.0000000;-0.1323818
1978.0000000;0.1268647
1979.0000000;-0.1412911
1980.0000000;0.0368402
1981.0000000;-0.0357510
1982.0000000;-0.0100292
1983.0000000;-0.1800996
1984.0000000;1.4223588
1985.0000000;0.9053544
1986.0000000;-1.1302829
1987.0000000;0.0443336
1988.0000000;0.0163682
1989.0000000;-1.2206290
1990.0000000;-1.5222187
1991.0000000;-1.6480584
1992.0000000;-1.6575773
1993.0000000;-0.9256644
1994.0000000;-0.7247232
1995.0000000;0.7084007
1996.0000000;-0.2515613
1997.0000000;-0.8357885
1998.0000000;-1.8097111
1999.0000000;-0.5783965
2000.0000000;-1.0808494
2001.0000000;0.9316565
2002.0000000;-0.1668163
2003.0000000;-2.1723676
2004.0000000;-1.9544117
2005.0000000;-1.9347061
2006.0000000;-1.2057583
2007.0000000;-0.9524032
2008.0000000;-1.5138166
2009.0000000;-1.9439802
2010.0000000;-1.0210176
2011.0000000;-1.9318606
2012.0000000;-2.1581564
2013.0000000;-1.2509637
2014.0000000;-1.2284415
2015.0000000;-1.9025817