Year Personnel 1985 65700 1989 62000 1990 65000 1991 63000 1992 70000 1993 70000 1994 70000 1995 99600 1996 98200 1997 88950 1998 88700 1999 88700 2000 88300 2001 69500 2002 69500 2003 63200 2004 27600 2005 28600 2006 24600 2007 17600 2008 17600 2009 21870 2010 21163 2011 21300 2012 16100 2013 16100 2014 30550 2015 30550 2016 30550 2017 30000 2018 15150 2019 15000 2020 15000