1967.0000000;-0.9474002
1968.0000000;0.7971424
1969.0000000;-0.9703088
1970.0000000;-0.4180488
1971.0000000;-1.2254071
1972.0000000;-0.5230546
1973.0000000;-0.7727485
1974.0000000;-0.7052697
1975.0000000;-1.0594845
1976.0000000;-1.3013934
1977.0000000;-0.3448650
1978.0000000;-0.0724260
1979.0000000;-0.2784372
1980.0000000;-0.2128636
1981.0000000;-0.1075772
1982.0000000;-0.0828145
1983.0000000;-0.3403184
1984.0000000;1.4550562
1985.0000000;0.6732064
1986.0000000;-1.1461558
1987.0000000;-0.4018044
1988.0000000;-0.0732211
1989.0000000;-1.1616831
1990.0000000;-1.2155191
1991.0000000;-1.5746394
1992.0000000;-1.5365157
1993.0000000;-1.0350331
1994.0000000;-0.6891870
1995.0000000;0.7068825
1996.0000000;-0.2118687
1997.0000000;-0.7551488
1998.0000000;-1.6902738
1999.0000000;-0.6311092
2000.0000000;-1.0268686
2001.0000000;0.7938893
2002.0000000;0.1385447
2003.0000000;-1.9812459