Year	Percent
2000	17.1198
2001	18.42287
2002	19.72593
2003	21.029
2004	22.41962
2005	23.82046
2006	25.23152
2007	26.65279
2008	28.08428
2009	29.52599
2010	30.97792
2011	32.44006
2012	33.91242
2013	35.395
2014	36.88779
2015	38.3908
2016	39.90403
2017	41.42748
2018	42.96114
2019	44.50502
2020	46.05912
2021	47.62344
2022	49.01846