Annual Index 2010=1, Trend 1966-01-01 0.133993498125356 1967-01-01 0.142450975926169 1968-01-01 0.147564699386875 1969-01-01 0.156490366870205 1970-01-01 0.170115156068315 1971-01-01 0.184517803100202 1972-01-01 0.193365852671158 1973-01-01 0.212429962564629 1974-01-01 0.253867591225044 1975-01-01 0.287185956742095 1976-01-01 0.308077323219298 1977-01-01 0.338821124079913 1978-01-01 0.370849205147948 1979-01-01 0.393568253484970 1980-01-01 0.430663862140079 1981-01-01 0.466821496774284 1982-01-01 0.497325140419619 1983-01-01 0.524990888486860 1984-01-01 0.551342420271596 1985-01-01 0.575230320360323 1986-01-01 0.599814864638717 1987-01-01 0.642157984162232 1988-01-01 0.657570403110261 1989-01-01 0.689559083312698 1990-01-01 0.704720629320100 1991-01-01 0.702128427677085 1992-01-01 0.705076181804964 1993-01-01 0.711875939657030 1994-01-01 0.694984161414444 1995-01-01 0.702651766770984 1996-01-01 0.717129091019605 1997-01-01 0.727356187508753 1998-01-01 0.755207174560872 1999-01-01 0.760063420059081 2000-01-01 0.760272633527819 2001-01-01 0.789040042650848 2002-01-01 0.818708808486600 2003-01-01 0.831986310625677 2004-01-01 0.833372864776562 2005-01-01 0.862951651230236 2006-01-01 0.887859418841348 2007-01-01 0.936456846885098 2008-01-01 0.983123551963806 2009-01-01 1.008927741293410 2010-01-01 1.000000000000000