Year	Index 2010=1
1988-01-01	0.624511476092239
1989-01-01	0.641410032182278
1990-01-01	0.653652111581254
1991-01-01	0.667280943381836
1992-01-01	0.675811313160678
1993-01-01	0.679135433598206
1994-01-01	0.668139660346480
1995-01-01	0.677765685113549
1996-01-01	0.695192645485019
1997-01-01	0.704512072648324
1998-01-01	0.731296849602691
1999-01-01	0.743560829453555
2000-01-01	0.745821285307039
2001-01-01	0.775334757445983
2002-01-01	0.803387987415006
2003-01-01	0.821257886069207
2004-01-01	0.829140153748231
2005-01-01	0.854729316371000
2006-01-01	0.874842859795119
2007-01-01	0.912940386963106
2008-01-01	0.965993321856555
2009-01-01	1.008212559801650
2010-01-01	1.000000000000000