Year	Percent
2000	60.89323
2001	61.67219
2002	62.31156
2003	62.95131
2004	63.59115
2005	64.23079
2006	65.00649
2007	65.89077
2008	66.74667
2009	67.52887
2010	68.18723
2011	68.83946
2012	69.48539
2013	70.12366
2014	70.755
2015	71.37893
2016	71.99093
2017	72.58976
2018	73.17592
2019	73.74937
2020	74.30948
2021	74.85649
2022	75.69411