Year	Percent
2000	18.78176
2001	21.37371
2002	23.96565
2003	26.5576
2004	29.14955
2005	31.74149
2006	34.33344
2007	36.92538
2008	39.51733
2009	42.10927
2010	44.70122
2011	47.29317
2012	50.11651
2013	52.96391
2014	55.83535
2015	58.73083
2016	61.65037
2017	64.59395
2018	67.56157
2019	70.55325
2020	73.56897
2021	76.60873
2022	76.60873