Year	Percent
2000	20.74757
2001	21.93362
2002	23.20697
2003	24.48928
2004	25.78054
2005	27.08076
2006	28.38994
2007	29.70808
2008	31.03517
2009	32.37122
2010	33.71623
2011	35.07019
2012	36.43312
2013	37.80499
2014	39.18583
2015	40.57562
2016	41.97437
2017	43.38208
2018	44.79874
2019	46.22436
2020	47.65894
2021	49.10248
2022	50.55497