Year	Personnel
1985	6000
1989	7000
1990	11000
1991	11000
1992	8000
1993	8000
1994	10000
1995	11100
1996	11800
1997	11800
1998	11800
1999	11800
2000	12300
2001	12300
2002	12400
2003	12400
2004	12000
2005	12000
2006	12000
2007	12000
2008	12000
2009	11800
2010	11800
2011	11800
2012	11800
2013	11800
2014	11800
2015	11800
2016	21500
2017	22000
2018	21500
2019	22000
2020	22000