Year	Percent
2006	95.18597
2007	95.43022
2008	95.67469
2009	95.9193
2010	96.16409
2011	96.4091
2012	96.65431
2013	96.89975
2014	97.14541
2015	97.3913
2016	97.63739
2017	97.88369
2018	98.5063
2019	98.6814
2020	98.85691
2021	98.86039
2022	98.86387