Year	Percent
2000	30.75737
2001	30.75737
2002	32.30595
2003	33.85454
2004	35.40312
2005	36.95171
2006	38.50029
2007	40.39525
2008	42.31699
2009	44.26552
2010	46.24084
2011	48.24295
2012	50.27184
2013	52.32751
2014	54.40998
2015	56.51923
2016	58.65527
2017	60.81809
2018	63.0077
2019	65.2241
2020	66.94679
2021	68.66949
2022	70.39219