Year Index 2010=1, Trend 1970-01-01 0.371829911790052 1971-01-01 0.419388585729839 1972-01-01 0.449840974485573 1973-01-01 0.517778876588142 1974-01-01 0.626101771724874 1975-01-01 0.724894672745665 1976-01-01 0.727777052911790 1977-01-01 0.745797390487266 1978-01-01 0.755343247637646 1979-01-01 0.785376881116510 1980-01-01 0.857708787842719 1981-01-01 0.949341563901888 1982-01-01 1.021092171914230 1983-01-01 1.067264963157150 1984-01-01 1.118880048918460 1985-01-01 1.170918392450740 1986-01-01 1.187806726388960 1987-01-01 1.195065885170730 1988-01-01 1.239847482328180 1989-01-01 1.288486116573960 1990-01-01 1.382447047579620 1991-01-01 1.487143511758830 1992-01-01 1.401548562225590 1993-01-01 1.304173043569000 1994-01-01 1.263234874872120 1995-01-01 1.330825957698240 1996-01-01 1.340418619809660 1997-01-01 1.285825835519710 1998-01-01 1.257022843534830 1999-01-01 1.220113147246250 2000-01-01 1.157458079958960 2001-01-01 1.167836874167030 2002-01-01 1.131646952553230 2003-01-01 1.098707446924730 2004-01-01 1.072184415542150 2005-01-01 1.062413255722200 2006-01-01 0.999860296503307 2007-01-01 0.943304072200600 2008-01-01 0.968975534136808 2009-01-01 1.022775987436700 2010-01-01 1.000000000000000