Year 0-14 1990 2800 1991 3700 1992 4700 1993 5700 1994 6800 1995 8000 1996 9100 1997 10000 1998 11000 1999 12000 2000 13000 2001 14000 2002 15000 2003 15000 2004 16000 2005 16000 2006 17000 2007 17000 2008 17000 2009 17000 2010 17000 2011 16000 2012 16000 2013 16000 2014 15000 2015 15000 2016 14000 2017 14000 2018 13000 2019 13000 2020 12000 2021 12000 2022 12000