Year	Personnel
1985	8500
1989	16000
1990	17000
1991	17000
1992	16000
1993	16000
1994	11000
1995	20700
1996	20700
1997	20650
1998	20650
1999	20650
2000	20700
2001	20600
2002	20700
2003	20700
2004	20000
2005	21000
2006	21000
2007	21000
2008	21000
2009	20870
2010	20870
2011	20850
2012	20850
2013	20850
2014	20850
2015	20850
2016	20850
2017	21000
2018	20850
2019	21000
2020	21000