Year Personnel 1992 1900000 1993 1500000 1994 1400000 1995 1800000 1996 1622000 1997 1823000 1998 1702000 1999 1482100 2000 1427100 2001 1386200 2002 1397200 2003 1369700 2004 1452000 2005 1452000 2006 1446000 2007 1476000 2008 1476000 2009 1495000 2010 1430000 2011 1364000 2012 1364000 2013 1260000 2014 1287000 2015 1490000 2016 1454000 2017 1454000 2018 1454000 2019 1454000 2020 1454000