Year	Percent
2000	99.75069
2001	99.76402
2002	99.77735
2003	99.50976
2004	99.20437
2005	98.89888
2006	98.59332
2007	98.28766
2008	97.98193
2009	97.6761
2010	97.3702
2011	97.0642
2012	96.75812
2013	96.45196
2014	96.14571
2015	96.15854
2016	96.17136
2017	96.18418
2018	96.18418
2019	96.18418
2020	96.18418
2021	96.18418
2022	96.18418