Year Index 2010=1, Trend 1970-01-01 0.155595680699924 1971-01-01 0.163158243976320 1972-01-01 0.169678894858975 1973-01-01 0.181842792307296 1974-01-01 0.206059090578110 1975-01-01 0.229855372133095 1976-01-01 0.244789075567706 1977-01-01 0.261966002792887 1978-01-01 0.280004884462271 1979-01-01 0.296841675227815 1980-01-01 0.325949912009845 1981-01-01 0.355467124302269 1982-01-01 0.388242221573614 1983-01-01 0.403269341762746 1984-01-01 0.418848205022734 1985-01-01 0.435764807818882 1986-01-01 0.446843366811668 1987-01-01 0.470073719033492 1988-01-01 0.497693731353913 1989-01-01 0.523004798770253 1990-01-01 0.560766478192751 1991-01-01 0.596264305453190 1992-01-01 0.624391307341557 1993-01-01 0.646550186818467 1994-01-01 0.664901470068530 1995-01-01 0.691266414662718 1996-01-01 0.726452730947953 1997-01-01 0.760312543365738 1998-01-01 0.796883315898348 1999-01-01 0.826688316101451 2000-01-01 0.852895061727619 2001-01-01 0.868159186991980 2002-01-01 0.871691169305152 2003-01-01 0.876828629011558 2004-01-01 0.895487151564287 2005-01-01 0.904206160149043 2006-01-01 0.923846086150954 2007-01-01 0.950972601467105 2008-01-01 0.973807891102369 2009-01-01 0.995561378008670 2010-01-01 1.000000000005260