Year	Percent
2001	54.30781
2002	54.30781
2003	54.30781
2004	54.30781
2005	54.30781
2006	55.75078
2007	57.19376
2008	58.63673
2009	60.07971
2010	61.52268
2011	62.96565
2012	64.40863
2013	65.8516
2014	67.29458
2015	68.73755
2016	70.18053
2017	71.6235
2018	73.06648
2019	74.50945
2020	75.95242
2021	77.3954
2022	77.3954