Year	Percent
2000	47.72685
2001	49.18904
2002	50.67132
2003	52.17387
2004	53.69658
2005	55.23932
2006	56.80171
2007	58.3839
2008	59.98577
2009	61.60695
2010	63.24782
2011	64.90776
2012	66.58689
2013	68.28485
2014	70.00199
2015	71.741
2016	73.50167
2017	75.28354
2018	77.08634
2019	78.90934
2020	80.72876
2021	82.33106
2022	82.38444