Year	Percent
2000	91.45377
2001	91.14861
2002	90.04193
2003	88.94065
2004	87.84474
2005	86.75423
2006	85.66909
2007	84.58934
2008	83.51498
2009	82.446
2010	81.38241
2011	80.3242
2012	79.27138
2013	78.22394
2014	77.18189
2015	76.91172
2016	76.91172
2017	76.91172
2018	76.91172
2019	76.91172