Year	Percent
2001-01-01	2.7486200000000003
2002-01-01	1.8123000000000000
2003-01-01	1.6928800000000000
2004-01-01	14.6702000000000000
2005-01-01	10.4941000000000000
2006-01-01	11.8415000000000000
2007-01-01	17.5319000000000000
2008-01-01	15.3835000000000000
2009-01-01	20.6130000000000030
2010-01-01	24.5575000000000000
2011-01-01	25.3860000000000000
2012-01-01	32.2088000000000000
2013-01-01	31.7612000000000000
2014-01-01	28.7698000000000000
2015-01-01	29.1311000000000000
2016-01-01	28.8222000000000000