Year	Personnel
1992	12000
1993	12000
1994	13000
1995	7000
1996	12000
1997	14200
1998	14200
1999	12200
2000	14000
2001	14000
2002	15900
2003	15900
2004	17000
2005	18000
2006	21000
2007	21000
2008	21000
2009	20400
2010	20400
2011	20400
2012	20400
2013	20400
2014	20400
2015	20400
2016	20400
2017	21000
2018	20900
2019	21000
2020	21000