Year	Percent
2000	38.68913
2001	38.08038
2002	37.47163
2003	36.86288
2004	36.25413
2005	35.64538
2006	35.03663
2007	34.42788
2008	33.81912
2009	33.21037
2010	32.60162
2011	31.99287
2012	31.38412
2013	30.77537
2014	30.77537
2015	30.77537
2016	30.77537
2017	30.77537