Year	Percent
2000	68.8163
2001	69.60465
2002	70.393
2003	71.18135
2004	71.96971
2005	72.75806
2006	73.54641
2007	74.33476
2008	75.12312
2009	75.91147
2010	76.69982
2011	77.48817
2012	78.27652
2013	79.06488
2014	79.85323
2015	80.64158
2016	81.42993
2017	81.42993
2018	81.42993
2019	81.42993
2020	81.42993