1974	0.5
1975	0.5
1976	2.5
1977	3.75
1978	4.5
1979	5.5
1980	5.5
1981	6.5
1982	6.5
1983	6.5

1984	6.5
1985	6.5
1986	6.5
1987	14
1988	45
1989	50
1990	50
1991	50
1992	50
1993	50

1994	180.36
1995	180.36
1996	180.36
1997	180.36
1998	180.36
1999	180.36
2000	180.36
2001	180.36
2002	180.36
2003	300

2004	300
2005	300
2006	300
2007	300
2008	315
2009	315
2010	400
2011	500
2012	500
2013	500

2014	525
2015	525
2016	525
2017	525
2018	525
2019	525
2020	550
2021	550
2022	550
2023	550