1967.0000000;-1.0240721
1968.0000000;0.0911793
1969.0000000;-0.7048554
1970.0000000;-0.4943421
1971.0000000;-1.4776630
1972.0000000;-0.5718736
1973.0000000;-0.9508376
1974.0000000;-0.8992836
1975.0000000;-0.5271195
1976.0000000;-1.4777322
1977.0000000;-0.1592015
1978.0000000;0.3805914
1979.0000000;-0.2469828
1980.0000000;0.3541182
1981.0000000;0.0876493
1982.0000000;-0.0094058
1983.0000000;-0.2175161
1984.0000000;1.1349618
1985.0000000;0.6092587
1986.0000000;-1.2358288
1987.0000000;-0.0758396
1988.0000000;0.2915431
1989.0000000;-1.3622689
1990.0000000;-1.5556412
1991.0000000;-1.6063368
1992.0000000;-1.5735550
1993.0000000;-0.6476467
1994.0000000;-0.4014812
1995.0000000;0.7853884
1996.0000000;-0.1617042
1997.0000000;-0.8138376
1998.0000000;-1.6680342
1999.0000000;-0.7516209
2000.0000000;-0.8190146
2001.0000000;0.7226939
2002.0000000;-0.7397110
2003.0000000;-2.3318439
2004.0000000;-1.8805566
2005.0000000;-2.0166683
2006.0000000;-1.4355420
2007.0000000;-1.1568025
2008.0000000;-1.4761614
2009.0000000;-2.1524692
2010.0000000;-0.9631385
2011.0000000;-2.1608558
2012.0000000;-2.2582252
2013.0000000;-0.7304467
2014.0000000;-1.0005684
2015.0000000;-2.0380039