Year	Percent
2000	82.72092
2001	82.82578
2002	82.92913
2003	83.03158
2004	83.27473
2005	83.51652
2006	83.75696
2007	83.99602
2008	84.23371
2009	84.47002
2010	84.70495
2011	84.93845
2012	85.16995
2013	85.39916
2014	85.62576
2015	85.84955
2016	86.07016
2017	86.28739
2018	86.49974
2019	86.6316
2020	86.60643
2021	86.58009
2022	86.5526