Year Personnel 1985 25000 1989 35000 1990 35000 1991 35000 1992 35000 1993 35000 1994 35000 1995 63000 1996 71000 1997 86000 1998 90000 1999 90000 2000 90000 2001 86000 2002 91000 2003 103000 2004 131000 2005 131000 2006 131000 2007 131000 2008 131000 2009 157753 2010 157753 2011 157750 2012 157750 2013 157750 2014 157750 2015 158600 2016 158600 2017 112000 2018 111600 2019 112000 2020 112000