Year	Percent
1993	55.41607
1994	55.44196
1995	55.39019
1996	55.39019
1997	55.39019
1998	55.44196
1999	55.41607
2000	55.39019
2001	55.36431
2002	47.26362
2003	47.47535
2004	47.0022
2005	46.66697
2006	46.16117
2007	46.55922
2008	46.24042
2009	45.90717
2010	45.6289
2011	45.37149
2012	45.65441
2013	45.597
2014	45.53225
2015	45.25321
2016	45.1755
2017	45.6029
2018	45.6288
2019	45.64
2020	45.64687
2021	45.73056