Year	Percent
2000	79.12983
2001	79.38143
2002	79.62918
2003	79.87256
2004	80.32343
2005	80.77593
2006	81.23053
2007	81.68671
2008	82.14496
2009	82.60419
2010	83.06288
2011	83.46776
2012	83.87384
2013	84.28092
2014	84.689
2015	85.36799
2016	86.24227
2017	87.1068
2018	87.96185
2019	88.59087
2020	89.17757
2021	89.82515
2022	89.87072