Year	Percent
2000	56.23929
2001	57.06077
2002	57.89031
2003	58.72479
2004	59.25749
2005	59.75303
2006	60.24738
2007	60.73926
2008	61.22999
2009	61.71658
2010	62.20079
2011	62.6818
2012	63.15966
2013	63.63269
2014	64.10224
2015	64.56749
2016	65.02302
2017	65.46683
2018	65.89945
2019	66.32099
2020	66.69531
2021	67.06128
2022	67.41888