Year	Percent
2003-01-01	1.4251800000000000
2004-01-01	3.2183900000000003
2005-01-01	3.2183900000000003
2006-01-01	3.2183900000000003
2007-01-01	49.6497000000000000
2008-01-01	52.8128000000000000
2009-01-01	45.0311000000000000
2010-01-01	44.8386000000000000
2011-01-01	46.8568000000000000
2012-01-01	41.7356000000000000
2013-01-01	40.1151000000000000