Year	Percent
2000	82.91918
2001	83.25386
2002	83.59316
2003	83.93708
2004	84.28582
2005	84.6745
2006	85.10005
2007	85.52611
2008	85.95269
2009	86.37978
2010	86.8074
2011	87.23553
2012	87.66418
2013	88.09335
2014	88.52305
2015	88.95145
2016	89.38346
2017	89.81839
2018	90.25598
2019	90.69569
2020	91.13725
2021	91.58024
2022	92.02427