Year 0-14 1990 13000 1991 15000 1992 18000 1993 20000 1994 22000 1995 24000 1996 26000 1997 27000 1998 28000 1999 29000 2000 30000 2001 30000 2002 30000 2003 29000 2004 29000 2005 28000 2006 27000 2007 26000 2008 25000 2009 24000 2010 23000 2011 21000 2012 20000 2013 19000 2014 18000 2015 17000 2016 16000 2017 15000 2018 14000 2019 13000 2020 12000 2021 11000 2022 10000