Year	Percent
2000	87.60183
2001	88.11921
2002	88.63798
2003	89.15815
2004	89.67971
2005	90.20266
2006	90.727
2007	91.25273
2008	91.77985
2009	92.30837
2010	92.83828
2011	93.36958
2012	93.90227
2013	94.24504
2014	94.58781
2015	94.93058
2016	94.93058
2017	94.93058
2018	94.93058
2019	94.93058