Year ages 15+ (ages 0-14) 1990 12000 1991 10000 1992 8500 1993 9200 1994 10000 1995 12000 1996 13000 1997 13000 1998 14000 1999 15000 2000 15000 2001 15000 2002 16000 2003 16000 2004 16000 2005 17000 2006 17000 2007 17000 2008 17000 2009 18000 2010 18000 2011 18000 2012 18000 2013 19000 2014 19000 2015 19000 2016 19000 2017 20000 2018 20000 2019 20000 2020 20000 2021 20000 2022 20000