Year	Percent
2000	87.69979
2001	87.996
2002	88.29222
2003	88.58843
2004	88.88465
2005	89.18086
2006	89.47708
2007	89.77329
2008	90.06951
2009	90.36573
2010	90.66194
2011	90.95816
2012	91.25437
2013	91.55059
2014	91.8468
2015	92.14302
2016	92.43923
2017	92.73545
2018	92.8
2019	92.8
2020	92.8
2021	92.8
2022	92.8