Year	Percent
2000-01-01	23.0949
2001-01-01	22.2605
2002-01-01	34.3436
2003-01-01	32.8293
2004-01-01	32.1620
2005-01-01	27.6445
2006-01-01	23.5903
2007-01-01	21.3185
2008-01-01	19.8039
2009-01-01	22.7851
2010-01-01	22.8647
2011-01-01	24.5343
2012-01-01	21.2417
2013-01-01	20.5911
2014-01-01	21.7104