Year	Percent
2001-01-01	4.0159400000000005
2002-01-01	7.4385699999999995
2003-01-01	6.8130600000000010
2004-01-01	5.9919000000000000
2005-01-01	4.7639300000000000
2006-01-01	8.3854600000000000
2007-01-01	10.5478000000000000
2008-01-01	10.4680000000000000
2009-01-01	9.2072800000000000
2010-01-01	5.9986800000000000
2011-01-01	5.5793700000000000
2012-01-01	4.8806300000000000
2013-01-01	3.9118699999999995
2014-01-01	3.3833699999999998
2015-01-01	3.4357599999999997
2016-01-01	4.7631100000000000
2017-01-01	4.6289099999999990