Year Personnel 1985 1027000 1989 1250000 1990 1050000 1991 1040000 1992 857000 1993 857000 1994 700000 1995 622000 1996 622000 1997 557000 1998 524000 1999 524000 2000 524000 2001 524000 2002 524000 2003 524000 2005 495000 2006 495000 2007 495000 2008 495000 2009 495000 2010 522000 2011 522000 2012 522000 2013 522000 2014 522000 2015 522000 2016 522000 2017 522000 2018 522000 2019 522000 2020 522000