Year Personnel 1985 41000 1989 51000 1990 45000 1991 45000 1992 48000 1993 48000 1994 43000 1995 67800 1996 64800 1997 60800 1998 60800 1999 60800 2000 61800 2001 60800 2002 57800 2003 50800 2004 50000 2005 51000 2006 51000 2007 51000 2008 51000 2009 50800 2010 50800 2011 50800 2012 50800 2013 50800 2014 50800 2015 50800 2016 50800 2017 51000 2018 51000 2019 51000 2020 51000