Year	Percent
2003-01-01	3.122610000000000
2004-01-01	5.027480000000001
2005-01-01	6.192290000000000
2006-01-01	3.570000000000000
2007-01-01	3.720000000000000
2008-01-01	2.470000000000000
2009-01-01	2.590000000000000
2010-01-01	3.030000000000000
2011-01-01	4.050000000000000
2012-01-01	5.000000000000000
2013-01-01	6.100000000000000
2014-01-01	7.060000000000000
2015-01-01	7.270000000000000
2016-01-01	7.340000000000000