Year	Percent
2000	36.82795
2001	39.19106
2002	41.53751
2003	43.86641
2004	46.17847
2005	48.4726
2006	50.7498
2007	53.00935
2008	55.2522
2009	57.47693
2010	59.68185
2011	61.80066
2012	63.95307
2013	66.09924
2014	68.23888
2015	70.37171
2016	72.49693
2017	74.61426
2018	76.72373
2019	78.82496
2020	80.91815
2021	83.00309
2022	83.0453