Year Index 2010=1, Trend 1970-01-01 0.0911877014501092 1971-01-01 0.0990255437401239 1972-01-01 0.1077773441592110 1973-01-01 0.1175896219593260 1974-01-01 0.1419304896426300 1975-01-01 0.1898942242354450 1976-01-01 0.2108604960933450 1977-01-01 0.2290366178164210 1978-01-01 0.2532030210085800 1979-01-01 0.2877693518410160 1980-01-01 0.3535648494645900 1981-01-01 0.3903501215354160 1982-01-01 0.4068095881926440 1983-01-01 0.4189771989163550 1984-01-01 0.4393226608466390 1985-01-01 0.4627670328614160 1986-01-01 0.4760281784694360 1987-01-01 0.4845215591185860 1988-01-01 0.5235392638507030 1989-01-01 0.5686127170050970 1990-01-01 0.6227572300650300 1991-01-01 0.6709821526063970 1992-01-01 0.6898267966950540 1993-01-01 0.6819029988753310 1994-01-01 0.6706804576652730 1995-01-01 0.6835744710227590 1996-01-01 0.6905159397376940 1997-01-01 0.7043065576736160 1998-01-01 0.7351178904816490 1999-01-01 0.7481662312593410 2000-01-01 0.7679504431702920 2001-01-01 0.7957107813034260 2002-01-01 0.8137018845812600 2003-01-01 0.8322383051678010 2004-01-01 0.8389288062748020 2005-01-01 0.8500360342480080 2006-01-01 0.8659701208312870 2007-01-01 0.8969724630917540 2008-01-01 0.9135917768604700 2009-01-01 0.9733442175013270 2010-01-01 1.0000000000000000