Year	Percent
1991	0.004
1992	0.004
1993	0.003
1994	0.003
1995	0.003
1996	0.003
1997	0.003
1998	0.003
1999	0.003
2000	0.002
2001	0.002
2002	0.002
2003	0.002
2004	0.002
2005	0.002
2006	0.002
2007	0.002
2008	0.002
2009	0.002
2010	0.002
2011	0.002
2012	0.003
2013	0.003
2014	0.003
2015	0.003
2016	0.003
2017	0.003
2018	0.003
2019	0.003
2020	0.003
2021	0.003
2022	0.003
2023	0.003
2024	0.003