Year	Personnel
1985	12000
1989	20000
1990	7000
1991	10000
1992	12000
1993	12000
1994	15000
1995	21600
1996	20800
1997	20300
1998	20300
1999	20300
2000	20300
2001	20500
2002	22100
2003	22100
2004	21000
2005	23000
2006	23000
2007	23000
2008	23000
2009	22600
2010	22600
2011	22600
2012	22600
2013	22600
2014	22600
2015	22600
2016	22600
2017	25000
2018	24500
2019	25000
2020	25000