Annual Index 2010=1, Trend
1976-01-01 0.438633568220030
1977-01-01 0.457650661555797
1978-01-01 0.507341934901181
1979-01-01 0.495649080424453
1980-01-01 0.531941529641822
1981-01-01 0.577946882511554
1982-01-01 0.574273587854172
1983-01-01 0.575594888432665
1984-01-01 0.608312379243330
1985-01-01 0.633653086709901
1986-01-01 0.652869087478870
1987-01-01 0.668344858587131
1988-01-01 0.674287429702986
1989-01-01 0.689657347341582
1990-01-01 0.720519465917003
1991-01-01 0.750229536350900
1992-01-01 0.787626123391520
1993-01-01 0.816096046543198
1994-01-01 0.824349115087613
1995-01-01 0.827103504097955
1996-01-01 0.836735254651071
1997-01-01 0.836488718727412
1998-01-01 0.836749954321153
1999-01-01 0.845343626548598
2000-01-01 0.848714660965222
2001-01-01 0.858492690565452
2002-01-01 0.863007073079798
2003-01-01 0.881063085142846
2004-01-01 0.887843263006870
2005-01-01 0.905313377489917
2006-01-01 0.918272582654466
2007-01-01 0.933509337805730
2008-01-01 0.961832565374854
2009-01-01 0.991069151807558
2010-01-01 1.000000000000000