Year	Percent
2000-01-01	8.65332013087415
2001-01-01	7.44219389216979
2002-01-01	6.57167943518256
2003-01-01	5.82474675870662
2004-01-01	6.01925573335630
2005-01-01	4.92055119210574
2006-01-01	3.50898298647633
2007-01-01	3.06898354298447
2008-01-01	3.30730526605203
2009-01-01	9.44309801958396
2010-01-01	10.73988333433920
2011-01-01	7.37097680592012
2012-01-01	6.17326647520308
2013-01-01	5.13835493186244