Year	Percent
2000	37.43666
2001	38.67476
2002	39.91286
2003	41.15096
2004	42.38906
2005	43.62716
2006	45.4632
2007	47.33224
2008	49.23428
2009	51.16932
2010	53.13737
2011	55.13841
2012	57.17246
2013	59.23951
2014	61.33956
2015	63.47261
2016	65.63866
2017	67.83771
2018	70.06977
2019	72.33482
2020	74.63288
2021	76.96394
2022	79.328