Year	Percent
1999-01-01	92.6426
2000-01-01	100.0000
2001-01-01	100.0000
2002-01-01	94.6334
2003-01-01	95.5301
2004-01-01	95.6090
2005-01-01	94.1014
2006-01-01	91.0296
2007-01-01	70.6887
2008-01-01	73.0772
2009-01-01	60.8621
2010-01-01	54.7558
2011-01-01	55.2641
2012-01-01	56.3459
2013-01-01	56.5773
2014-01-01	59.7316
2015-01-01	69.4446
2016-01-01	71.0969