Year	Percent
2000	11.17641
2001	13.70423
2002	16.31061
2003	18.99554
2004	21.75902
2005	24.60105
2006	27.52164
2007	30.52078
2008	33.59848
2009	36.75473
2010	39.98953
2011	43.30288
2012	46.69479
2013	50.16525
2014	53.71426
2015	57.34183
2016	61.04795
2017	64.83262
2018	68.69585
2019	72.63763
2020	76.65796
2021	80.75685
2022	80.75685