Year Personnel 1992 430000 1993 380000 1994 350000 1995 518500 1996 466800 1997 453400 1998 449400 1999 428000 2000 420400 2001 419800 2002 414800 2003 403000 2004 271000 2005 273000 2006 215000 2007 215000 2008 215000 2009 214825 2010 214825 2011 214850 2012 214850 2013 121500 2014 204000 2015 256000 2016 292000 2017 297000 2018 297000 2019 311000 2020 298000