Year	Percent
2002-01-01	13.271500000000000
2003-01-01	22.437200000000000
2004-01-01	21.143000000000000
2005-01-01	19.937700000000000
2006-01-01	18.433300000000000
2007-01-01	8.425630000000000
2008-01-01	8.259360000000001
2009-01-01	8.243269999999999
2010-01-01	8.392910000000000
2011-01-01	7.427169999999999
2012-01-01	6.352600000000000
2013-01-01	6.127840000000000
2014-01-01	5.874410000000000