1967.0000000;-0.5910238
1968.0000000;0.2986796
1969.0000000;-0.1462325
1970.0000000;-0.3811995
1971.0000000;-0.5791639
1972.0000000;-0.0332746
1973.0000000;-1.0552361
1974.0000000;-0.6939684
1975.0000000;0.0098467
1976.0000000;-0.8957914
1977.0000000;0.3151200
1978.0000000;0.4596831
1979.0000000;-0.2518960
1980.0000000;0.2020826
1981.0000000;-0.0980967
1982.0000000;-0.2166474
1983.0000000;-0.2684780
1984.0000000;0.4155659
1985.0000000;-0.1508096
1986.0000000;-1.1537181
1987.0000000;-0.2885330
1988.0000000;0.0909610
1989.0000000;-1.2704782
1990.0000000;-0.8574168
1991.0000000;-0.7342294
1992.0000000;-0.6958301
1993.0000000;-0.5551349
1994.0000000;-0.2781668
1995.0000000;0.3778656
1996.0000000;0.0183931
1997.0000000;-0.3739886
1998.0000000;-1.2492890
1999.0000000;-0.5084277
2000.0000000;-0.7059420
2001.0000000;0.7382028
2002.0000000;-0.2346629
2003.0000000;-2.3737319
2004.0000000;-1.7939526
2005.0000000;-1.8745813
2006.0000000;-1.8586941
2007.0000000;-1.3455725
2008.0000000;-1.5466388
2009.0000000;-2.5631590
2010.0000000;-0.7230468
2011.0000000;-2.8369222
2012.0000000;-2.6235952
2013.0000000;-1.4762398
2014.0000000;-1.9665987
2015.0000000;-3.6628697