Year	Percent
2000	23.66108
2001	25.22862
2002	26.7933
2003	28.5589
2004	30.31994
2005	32.07422
2006	33.82366
2007	33.82597
2008	35.98033
2009	38.12852
2010	40.27196
2011	42.40725
2012	43.99182
2013	45.57015
2014	47.14313
2015	48.71115
2016	50.2746
2017	51.83293
2018	53.38652
2019	54.93441
2020	56.47697
2021	58.01373
2022	58.2595