Year	Percent
2000	53.54882
2001	53.6563
2002	53.76378
2003	53.87126
2004	53.97873
2005	54.08621
2006	55.84549
2007	57.61131
2008	59.38369
2009	61.16262
2010	62.9481
2011	64.74013
2012	66.53872
2013	68.34385
2014	70.15554
2015	71.97378
2016	73.79858
2017	75.62992
2018	77.46781
2019	79.31226
2020	79.4656
2021	79.61894
2022	79.61894