Year	Percent
2000	62.27634
2001	64.17508
2002	66.06598
2003	67.94943
2004	69.82522
2005	72.27812
2006	74.74571
2007	77.22816
2008	79.72526
2009	82.23722
2010	84.76532
2011	87.30903
2012	89.86794
2013	92.4417
2014	94.34202
2015	96.11962
2016	96.12181
2017	96.12412
2018	96.12652
2019	96.12903