Year	Percent
2000	89.30679
2001	89.30195
2002	89.29706
2003	89.29219
2004	89.28717
2005	89.65237
2006	90.0189
2007	90.38669
2008	90.75584
2009	91.1263
2010	91.49812
2011	91.87121
2012	92.24825
2013	92.62697
2014	93.00635
2015	93.38646
2016	93.76723
2017	94.14837
2018	94.53003
2019	94.91236
2020	95.29553
2021	95.67967
2022	95.67814