Year	Percent
2000	79.66979
2001	80.32528
2002	80.93642
2003	81.54127
2004	82.13971
2005	82.73167
2006	83.31704
2007	83.89582
2008	84.46783
2009	85.03295
2010	85.59111
2011	86.14227
2012	86.68653
2013	87.22356
2014	87.75333
2015	88.27558
2016	88.79021
2017	89.29699
2018	89.79578
2019	90.28637
2020	90.76858
2021	91.24225
2022	91.2351