Year	Percent
2002	22.40313
2003	22.79374
2004	22.56997
2005	23.53902
2006	24.82351
2007	24.114
2008	25.11956
2009	25.75358
2010	26.77388
2011	25.70863
2012	25.0775
2013	25.9899
2014	26.84649