Year	Personnel
1985	3000
1989	4000
1990	4000
1991	3000
1992	8000
1993	8000
1994	8000
1995	12600
1996	12600
1997	12600
1998	12600
1999	12600
2000	12600
2001	12600
2002	12300
2003	12300
2004	11000
2005	13000
2007	12000
2008	13000
2009	12950
2010	12950
2011	12950
2012	12950
2013	12950
2014	12950
2015	12950
2016	13100
2017	13000
2018	13450
2019	13000
2020	13000