Year Index 2010=1, Trend 1970-01-01 0.157647184486508 1971-01-01 0.166472919584585 1972-01-01 0.173658829841035 1973-01-01 0.184640402729770 1974-01-01 0.214797132152600 1975-01-01 0.245199142445280 1976-01-01 0.261404659994650 1977-01-01 0.281393184115619 1978-01-01 0.303164799561851 1979-01-01 0.330126189241118 1980-01-01 0.370692133919613 1981-01-01 0.407606517890430 1982-01-01 0.440715265816898 1983-01-01 0.465041794223160 1984-01-01 0.485085708002961 1985-01-01 0.504115223178983 1986-01-01 0.541793944467811 1987-01-01 0.573253393000642 1988-01-01 0.611416117709243 1989-01-01 0.651568858220757 1990-01-01 0.690600057320830 1991-01-01 0.742230197285529 1992-01-01 0.782742398947959 1993-01-01 0.810887587103926 1994-01-01 0.820026046352487 1995-01-01 0.829997857997615 1996-01-01 0.854886243678544 1997-01-01 0.882190634294590 1998-01-01 0.909424607654844 1999-01-01 0.930979298526786 2000-01-01 0.946289890342943 2001-01-01 0.983614652681694 2002-01-01 0.981923177022021 2003-01-01 0.981034517639142 2004-01-01 0.958090467134521 2005-01-01 0.962967729776417 2006-01-01 0.967739341327205 2007-01-01 0.967257791112566 2008-01-01 0.998796251791090 2009-01-01 1.010885205558400 2010-01-01 1.000000000003610