Annual Index 2010=1, Trend
1978-01-01 0.237020215088058
1979-01-01 0.271948177457978
1980-01-01 0.319431209913417
1981-01-01 0.368584919379943
1982-01-01 0.409894482017326
1983-01-01 0.406696720655488
1984-01-01 0.409285336752918
1985-01-01 0.481962569202942
1986-01-01 0.562400698111821
1987-01-01 0.636134073192769
1988-01-01 0.665096453949213
1989-01-01 0.675472011393910
1990-01-01 0.692729239115943
1991-01-01 0.698559485532824
1992-01-01 0.691537813484644
1993-01-01 0.683215161673146
1994-01-01 0.699763570164318
1995-01-01 0.707362025277785
1996-01-01 0.729662295708136
1997-01-01 0.743944308575844
1998-01-01 0.752063839749636
1999-01-01 0.730863614666585
2000-01-01 0.714869068720304
2001-01-01 0.737220296264064
2002-01-01 0.749497840410944
2003-01-01 0.773551265472071
2004-01-01 0.800703917510077
2005-01-01 0.840996816570693
2006-01-01 0.881580535427300
2007-01-01 0.896305966203814
2008-01-01 0.948010391188538
2009-01-01 0.980259897776652
2010-01-01 1.000000000000000