Year	Percent
2003	24.73968
2004	25.26214
2005	26.20105
2006	25.1114
2007	26.82197
2008	26.40956
2009	24.88996
2010	25.09152
2011	25.93406
2012	24.22759
2013	23.39379
2014	23.96609
2015	26.11659