1967.0000000;-1.1082433
1968.0000000;0.7837344
1969.0000000;-0.2381009
1970.0000000;-0.2532752
1971.0000000;-0.9961765
1972.0000000;-0.0993819
1973.0000000;-0.6075385
1974.0000000;-0.9103774
1975.0000000;0.0682947
1976.0000000;-1.4465053
1977.0000000;0.4395294
1978.0000000;0.3296592
1979.0000000;-0.6857263
1980.0000000;0.1634588
1981.0000000;-0.5937656
1982.0000000;-0.3735229
1983.0000000;-0.2644029
1984.0000000;0.8547033
1985.0000000;-0.0951032
1986.0000000;-1.4684067
1987.0000000;-0.3083337
1988.0000000;-0.1342780
1989.0000000;-1.5284278
1990.0000000;-1.2321713
1991.0000000;-1.1059985
1992.0000000;-1.2315110
1993.0000000;-0.7572615
1994.0000000;-0.2499195
1995.0000000;0.5502276
1996.0000000;-0.2449611
1997.0000000;-0.7060282
1998.0000000;-1.7573144
1999.0000000;-0.5889826
2000.0000000;-1.2463340
2001.0000000;0.6873975
2002.0000000;-0.8375557
2003.0000000;-2.4110489
2004.0000000;-2.1353755
2005.0000000;-2.2834463
2006.0000000;-1.5851035
2007.0000000;-1.3517609
2008.0000000;-1.4608388
2009.0000000;-2.2068324
2010.0000000;-0.9573617
2011.0000000;-2.2013123
2012.0000000;-2.3040700
2013.0000000;-0.7020603
2014.0000000;-0.7778260
2015.0000000;-2.1865220