Year	Percent (Units)
1986	0.004
1987	0.004
1988	0.005
1989	0.005
1990	0.005
1991	0.005
1992	0.005
1993	0.005
1994	0.005
1995	0.005
1996	0.005
1997	0.005
1998	0.005
1999	0.005
2000	0.005
2001	0.005
2002	0.005
2003	0.005
2004	0.005
2005	0.005
2006	0.005
2007	0.005
2008	0.005
2009	0.004
2010	0.004
2011	0.004
2012	0.004
2013	0.004
2014	0.003
2015	0.003
2016	0.003
2017	0.003
2018	0.003
2019	0.003
2020	0.002
2021	0.003
2022	0.003
2023	0.003
2024	0.003
2025	0.003
2026	0.003
2027	0.003
2028	0.003
2029	0.003