Year	Personnel
1992	10000
1993	10000
1994	10000
1995	8900
1996	9900
1997	10050
1998	15030
1999	16030
2000	16600
2001	17200
2002	27300
2003	27300
2004	28000
2005	29000
2006	24000
2007	24000
2008	24000
2009	25240
2010	25240
2011	23350
2012	23350
2013	21950
2014	27400
2015	28330
2016	29650
2017	34000
2018	39550
2019	37000
2020	37000