1967.0000000;-1.3764187
1968.0000000;0.1472915
1969.0000000;-0.3865135
1970.0000000;-1.0486726
1971.0000000;-0.7368982
1972.0000000;-0.1073796
1973.0000000;-1.3009124
1974.0000000;-1.1041617
1975.0000000;-0.8591482
1976.0000000;-1.0047020
1977.0000000;0.6548393
1978.0000000;0.4874129
1979.0000000;-0.0114310
1980.0000000;-0.0662768
1981.0000000;-0.8511361
1982.0000000;-0.4477552
1983.0000000;-0.2597750
1984.0000000;0.1152936
1985.0000000;-0.7778149
1986.0000000;-1.2645342
1987.0000000;-0.7502202
1988.0000000;-0.3397915
1989.0000000;-1.5961182
1990.0000000;-1.1284494
1991.0000000;-0.9479323
1992.0000000;-0.7989078
1993.0000000;-0.8618119
1994.0000000;-0.5534627
1995.0000000;-0.0296405
1996.0000000;-0.0617213
1997.0000000;-0.7036542
1998.0000000;-1.6274550
1999.0000000;-1.1646111
2000.0000000;-1.5196471
2001.0000000;0.7747505
2002.0000000;-1.1008303
2003.0000000;-2.3947210
2004.0000000;-1.9296429
2005.0000000;-2.1769433
2006.0000000;-1.6372733
2007.0000000;-1.7108536
2008.0000000;-0.8398850
2009.0000000;-1.9061940
2010.0000000;-0.6675321
2011.0000000;-2.1676106
2012.0000000;-1.8484473
2013.0000000;-0.8872402
2014.0000000;-1.1602496
2015.0000000;-2.2862175