Year	Percent
2000	62.49536
2001	63.8931
2002	65.26319
2003	66.60525
2004	67.91897
2005	69.20186
2006	70.45649
2007	71.68211
2008	72.87908
2009	74.04479
2010	75.18271
2011	76.01982
2012	76.69714
2013	77.37377
2014	78.04927
2015	78.72452
2016	79.39908
2017	80.07253
2018	80.75156
2019	81.43561
2020	82.12412
2021	82.81581
2022	83.51123