Year	Index 2010=1
1998-01-01	0.764986092862976
1999-01-01	0.791867572041998
2000-01-01	0.870211613535839
2001-01-01	0.869921305146167
2002-01-01	0.891030830400680
2003-01-01	0.899684525337163
2004-01-01	0.957747600938036
2005-01-01	0.935110750417427
2006-01-01	0.906606098435753
2007-01-01	0.911844401039330
2008-01-01	0.966616687444561
2009-01-01	0.991399914068134
2010-01-01	1.000000000000000