Year	Percent
2000	76.95634
2001	77.72195
2002	78.48756
2003	79.25317
2004	80.01878
2005	80.78439
2006	81.55
2007	82.31561
2008	83.08122
2009	83.67863
2010	84.01028
2011	84.33411
2012	84.65011
2013	84.95829
2014	85.25864
2015	85.55117
2016	85.83587
2017	86.11274
2018	86.38179
2019	86.64301
2020	86.89641
2021	87.14198
2022	87.8591