Year	Percent
1999-01-01	24.2789
2000-01-01	30.2899
2001-01-01	34.2963
2002-01-01	33.8688
2003-01-01	35.5013
2004-01-01	40.2364
2005-01-01	34.9612
2006-01-01	43.1525
2007-01-01	43.3323
2008-01-01	26.8757
2009-01-01	63.3102
2010-01-01	88.1535
2011-01-01	82.5153
2012-01-01	109.5720
2013-01-01	91.4982
2014-01-01	96.0665
2015-01-01	30.6396
2016-01-01	27.3093