Year	Percent
2000	46.90494
2001	47.26015
2002	49.15474
2003	51.01653
2004	52.8442
2005	54.62419
2006	56.26958
2007	57.88901
2008	59.48189
2009	61.06873
2010	62.62896
2011	64.16222
2012	65.66615
2013	67.14089
2014	68.58685
2015	70.00458
2016	71.39454
2017	72.75729
2018	74.09345
2019	75.40367
2020	76.68856
2021	77.94886
2022	77.94007