Year	Personnel
1985	9900
1989	15000
1990	15000
1991	15000
1992	15000
1993	15000
1994	12000
1995	19300
1996	19300
1997	19300
1998	19300
1999	19300
2000	19300
2001	17300
2002	19300
2003	12300
2004	11000
2005	13000
2007	19000
2008	19000
2009	19300
2010	19300
2011	12300
2012	12300
2013	12300
2014	12300
2015	12300
2016	12300
2017	13000
2018	12700
2019	13000
2020	13000