1967.0000000;-0.1333275 1968.0000000;0.7120320 1969.0000000;0.4136500 1970.0000000;0.4305343 1971.0000000;0.4464293 1972.0000000;0.3297557 1973.0000000;0.0471202 1974.0000000;0.0265267 1975.0000000;0.2026381 1976.0000000;0.1562376 1977.0000000;1.1244147 1978.0000000;0.7969652 1979.0000000;0.6935709 1980.0000000;0.4053879 1981.0000000;0.1395425 1982.0000000;0.2229234 1983.0000000;0.1152112 1984.0000000;0.4859774 1985.0000000;0.2689641 1986.0000000;-0.1421634 1987.0000000;0.0883881 1988.0000000;0.3305023 1989.0000000;-0.5226715 1990.0000000;0.2048554 1991.0000000;-0.0485461 1992.0000000;0.1923258 1993.0000000;-0.0829275 1994.0000000;0.1060832 1995.0000000;0.4165944 1996.0000000;0.4119188 1997.0000000;0.4550090 1998.0000000;0.0162500 1999.0000000;-0.0997714 2000.0000000;-0.1300664 2001.0000000;1.0697882 2002.0000000;0.0628022 2003.0000000;-0.0830662 2004.0000000;-0.1490440 2005.0000000;-0.6411872 2006.0000000;-0.0231684 2007.0000000;0.0242069 2008.0000000;0.2047274 2009.0000000;0.1440025 2010.0000000;0.3000777 2011.0000000;-0.0211568 2012.0000000;-0.0864690 2013.0000000;0.2924975 2014.0000000;0.4246851 2015.0000000;0.2592905