Year	Index 2010=1
1978-01-01	0.327355228093694
1979-01-01	0.321978536704923
1980-01-01	0.343210781775412
1981-01-01	0.384696149499017
1982-01-01	0.438597123960038
1983-01-01	0.471703233896754
1984-01-01	0.485254236772536
1985-01-01	0.503243150810045
1986-01-01	0.550333074526449
1987-01-01	0.608088581007662
1988-01-01	0.646467345152664
1989-01-01	0.655361389605715
1990-01-01	0.661079218827689
1991-01-01	0.676977424519076
1992-01-01	0.684617197807080
1993-01-01	0.677156905879135
1994-01-01	0.673773092178872
1995-01-01	0.682375174900554
1996-01-01	0.682561797410651
1997-01-01	0.696152220736905
1998-01-01	0.726655739085925
1999-01-01	0.757015140740403
2000-01-01	0.781570478607292
2001-01-01	0.798286626683724
2002-01-01	0.818413678379167
2003-01-01	0.813220524490576
2004-01-01	0.813814594545979
2005-01-01	0.825758528396565
2006-01-01	0.829864065788997
2007-01-01	0.878035337284610
2008-01-01	0.951314667291414
2009-01-01	0.984332538658284
2010-01-01	1.000000000000000