Year	Percent
2000	83.37709
2001	83.42441
2002	83.47207
2003	83.5204
2004	83.56907
2005	83.9969
2006	84.45657
2007	84.91485
2008	85.37189
2009	85.82763
2010	86.26307
2011	86.68647
2012	87.10965
2013	87.53246
2014	87.95491
2015	88.37699
2016	88.79882
2017	89.22028
2018	89.64255
2019	90.06543
2020	90.48903
2021	90.91302
2022	91.33752