Year	Percent
2000	18.6823
2001	20.23204
2002	21.77133
2003	23.29816
2004	24.81318
2005	26.31637
2006	27.80829
2007	29.29771
2008	30.87521
2009	32.43838
2010	33.98875
2011	35.52505
2012	37.0482
2013	38.54823
2014	40.03466
2015	41.50686
2016	42.96516
2017	44.4085
2018	45.83816
2019	47.25398
2020	48.65535
2021	50.04256
2022	51.51296