Year	Percent
1995	0.50592
1996	0.48583
1997	0.42998
1998	0.40792
1999	0.38327
2000	0.01861
2001	0.01862
2002	0.01805
2003	0.01801
2004	0.01757
2005	0.01733
2006	0.01751
2007	0.01784
2008	0.017
2009	0.01991
2010	0.02049
2011	0.02039
2012	0.02147
2013	0.01782
2014	0.01481
2015	0.01252
2016	0.01861
2017	0.02392
2018	0.02225
2019	0.02757