Year	Percent
1997-01-01	0.135417000000000
1998-01-01	0.154810000000000
1999-01-01	39.454600000000000
2000-01-01	51.691100000000000
2001-01-01	55.321000000000005
2002-01-01	61.514300000000000
2003-01-01	63.372300000000000
2004-01-01	93.621500000000000
2005-01-01	94.617500000000000
2006-01-01	94.819800000000000
2007-01-01	107.899000000000000
2008-01-01	89.002400000000000
2009-01-01	109.762999999999990
2010-01-01	106.839000000000000
2011-01-01	99.782200000000000
2012-01-01	108.095000000000000
2013-01-01	110.512000000000000
2014-01-01	91.489600000000000
2015-01-01	96.026200000000000
2016-01-01	93.692400000000000