Year	ages 15+ (ages 0-14)
1990	3200
1991	2900
1992	2900
1993	2900
1994	2900
1995	2600
1996	2500
1997	2500
1998	2400
1999	2400
2000	2400
2001	2300
2002	2300
2003	2300
2004	2200
2005	2100
2006	1900
2007	1900
2008	1800
2009	1800
2010	1700
2011	1700
2012	1700
2013	1600
2014	1500
2015	1500
2016	1400
2017	1500
2018	1500
2019	1400
2020	1500
2021	1600
2022	1400