Year	Percent
2000	80.91423
2001	80.91423
2002	80.91423
2003	81.86633
2004	82.81843
2005	83.77052
2006	84.49253
2007	85.20936
2008	85.92102
2009	86.62751
2010	87.32883
2011	88.02497
2012	88.71595
2013	89.40175
2014	90.08238
2015	90.75784
2016	91.42813
2017	92.09325
2018	92.75319
2019	93.40797
2020	93.53888
2021	93.27406
2022	93.00923