Year	Percent
2004-01-01	5.416320000000000
2005-01-01	7.412150000000000
2006-01-01	8.907980000000000
2007-01-01	9.093630000000001
2008-01-01	2.150000000000000
2009-01-01	3.090000000000000
2010-01-01	3.440000000000000
2011-01-01	2.170000000000000
2012-01-01	2.140000000000000
2013-01-01	2.310000000000000
2014-01-01	1.970000000000000
2015-01-01	1.670000000000000
2016-01-01	1.590000000000000