Year	Percent
2000	15.41019
2001	16.69419
2002	18.01213
2003	19.36291
2004	20.74647
2005	22.16093
2006	23.60696
2007	25.08291
2008	26.5889
2009	28.12306
2010	29.6838
2011	31.27028
2012	32.88169
2013	34.51719
2014	36.17624
2015	37.85781
2016	39.56138
2017	41.2864
2018	43.03194
2019	44.7977
2020	46.58259
2021	48.38655
2022	50.20855