Year	Percent
2000	76.22374
2001	76.54196
2002	76.86032
2003	77.17881
2004	77.49743
2005	77.81618
2006	78.13507
2007	78.45409
2008	78.77325
2009	79.09253
2010	79.41196
2011	79.73151
2012	80.0512
2013	80.37102
2014	80.69098
2015	81.01106
2016	81.33128
2017	81.65164
2018	81.97213
2019	82.29275
2020	82.6135
2021	82.93439
2022	83.23708