Year	Percent
2000	61.74041
2001	62.00165
2002	62.27615
2003	62.5733
2004	62.86597
2005	63.15366
2006	63.43659
2007	63.71491
2008	63.98838
2009	64.25656
2010	64.51985
2011	64.7782
2012	65.03158
2013	65.2796
2014	65.52347
2015	65.76276
2016	65.99736
2017	66.2272
2018	66.4522
2019	66.67227
2020	66.88733
2021	67.12591
2022	67.36027