Year	Percent
1994	56.54403
1995	56.54399
1996	33.26198
1997	47.5
1998	46.49997
1999	52.36616
2000	31.97236
2001	32.8709
2002	26.58378
2003	26.05384
2004	23.87936
2005	21.57938
2006	21.21006
2007	21.60221
2008	22.61868
2009	23.67467
2010	21.42849
2011	20.91708
2012	20.44106
2013	19.31667
2014	18.56252
2015	18.37039
2016	18.59975
2017	19.7027
2018	18.88734
2019	19.43499
2020	20.88342
2021	19.04363
2022	17.44409