Year	Percent
2000	77.86231
2001	79.0959
2002	80.36668
2003	81.6386
2004	82.91166
2005	84.18586
2006	85.46121
2007	86.7377
2008	88.01533
2009	89.29411
2010	90.57403
2011	91.85509
2012	93.13729
2013	94.42063
2014	95.70512
2015	96.99075
2016	98.00592
2017	98.66317
2018	98.70852
2019	98.75387
2020	98.79921
2021	98.84456
2022	98.84456