Year 0-14 1990 11000 1991 13000 1992 16000 1993 19000 1994 15000 1995 17000 1996 24000 1997 26000 1998 28000 1999 29000 2000 30000 2001 30000 2002 31000 2003 32000 2004 32000 2005 32000 2006 32000 2007 31000 2008 30000 2009 28000 2010 27000 2011 25000 2012 23000 2013 21000 2014 20000 2015 18000 2016 16000 2017 15000 2018 13000 2019 11000 2020 9500 2021 8100 2022 7100