Year	ages 15+ (ages 0-14)
1990	2600
1991	2500
1992	2500
1993	2500
1994	2500
1995	2500
1996	2500
1997	2500
1998	2500
1999	2500
2000	2500
2001	2500
2002	2500
2003	2500
2004	2500
2005	2400
2006	2400
2007	2400
2008	2400
2009	2300
2010	2100
2011	1900
2012	1900
2013	1800
2014	1800
2015	1900
2016	1900
2017	1900
2018	2000
2019	1800
2020	1500