Year Index 2010=1, Trend 1970-01-01 0.000391147198551798 1971-01-01 0.000409203872678981 1972-01-01 0.000440299530594166 1973-01-01 0.000470113343031078 1974-01-01 0.000580721641742519 1975-01-01 0.000689228224261689 1976-01-01 0.000845525627120417 1977-01-01 0.001031677297010330 1978-01-01 0.001138724872837130 1979-01-01 0.001311326875522610 1980-01-01 0.001910212227968850 1981-01-01 0.002531183580105600 1982-01-01 0.003576422131519160 1983-01-01 0.006281983883448570 1984-01-01 0.009171046486967360 1985-01-01 0.013727715335740600 1986-01-01 0.025431289478492700 1987-01-01 0.056475175081908000 1988-01-01 0.108857984289446000 1989-01-01 0.138910285965006000 1990-01-01 0.170625822897510000 1991-01-01 0.210823256193681000 1992-01-01 0.252306601471576000 1993-01-01 0.278340886661173000 1994-01-01 0.289123453431786000 1995-01-01 0.337078357918287000 1996-01-01 0.414157278825548000 1997-01-01 0.495387626215393000 1998-01-01 0.573174567216746000 1999-01-01 0.675527456867342000 2000-01-01 0.775701004267472000 2001-01-01 0.855655799963210000 2002-01-01 0.884504704805282000 2003-01-01 0.916729814832927000 2004-01-01 0.922193072083543000 2005-01-01 0.927109969345815000 2006-01-01 0.947166016914479000 2007-01-01 0.962732476819010000 2008-01-01 0.973252641688636000 2009-01-01 0.990850931053902000 2010-01-01 1.000000000000000000