Year Index 2010=1 1970-01-01 0.378168728189128 1971-01-01 0.413459817701637 1972-01-01 0.433153161562607 1973-01-01 0.462478911129379 1974-01-01 0.502464549451641 1975-01-01 0.529315824426993 1976-01-01 0.538531498783338 1977-01-01 0.563282267054786 1978-01-01 0.590547595534705 1979-01-01 0.610836087628667 1980-01-01 0.664943376896372 1981-01-01 0.693159966749679 1982-01-01 0.724952878319160 1983-01-01 0.727985806654523 1984-01-01 0.736646201600284 1985-01-01 0.741755562855501 1986-01-01 0.781399434159529 1987-01-01 0.827684285438721 1988-01-01 0.827144254769533 1989-01-01 0.821284987111094 1990-01-01 0.854033422830536 1991-01-01 0.882138713697983 1992-01-01 0.952067948123460 1993-01-01 0.998589997966833 1994-01-01 0.970632027840399 1995-01-01 1.006045112392640 1996-01-01 1.030042349096810 1997-01-01 0.989285517627703 1998-01-01 0.998116350839383 1999-01-01 0.997315839010664 2000-01-01 0.980111435275937 2001-01-01 0.984877263227248 2002-01-01 0.999742322483723 2003-01-01 0.986808291755800 2004-01-01 0.959631666768121 2005-01-01 0.927221873861326 2006-01-01 0.890984730197595 2007-01-01 0.876603906523331 2008-01-01 0.948241603753444 2009-01-01 1.092500680763120 2010-01-01 1.000000000000000