Year	Percent
2000	70.50477
2001	71.07587
2002	71.64557
2003	72.21387
2004	72.78079
2005	74.44507
2006	76.12196
2007	77.81174
2008	79.51418
2009	81.22912
2010	82.96585
2011	84.71907
2012	86.48265
2013	88.25648
2014	90.04056
2015	91.83475
2016	93.63967
2017	95.45492
2018	96.99974
2019	97.86485
2020	98.49327
2021	98.49597
2022	98.49878