Annual Index 2010=1, Trend
1978-01-01 0.119428485954184
1979-01-01 0.137275197342285
1980-01-01 0.161877311762094
1981-01-01 0.195666572830031
1982-01-01 0.228184224796768
1983-01-01 0.234792473836136
1984-01-01 0.245878097337937
1985-01-01 0.295469136351504
1986-01-01 0.373553999141624
1987-01-01 0.451437978006387
1988-01-01 0.502504769165506
1989-01-01 0.527033549447723
1990-01-01 0.530095473753178
1991-01-01 0.525200835810696
1992-01-01 0.534317945574061
1993-01-01 0.543971070499167
1994-01-01 0.595269385302184
1995-01-01 0.627800853432981
1996-01-01 0.668940974667283
1997-01-01 0.701670416176907
1998-01-01 0.723034713189589
1999-01-01 0.719122414740677
2000-01-01 0.721608125916314
2001-01-01 0.730425605672237
2002-01-01 0.744312339775124
2003-01-01 0.770861876215147
2004-01-01 0.801714543151639
2005-01-01 0.856949724767241
2006-01-01 0.888867627432454
2007-01-01 0.885431151573581
2008-01-01 0.914795345060495
2009-01-01 0.960345705075375
2010-01-01 1.000000000000000