Year	ages 15+
1990	200
1991	500
1992	500
1993	500
1994	620
1995	880
1996	1600
1997	2000
1998	2100
1999	1900
2000	1500
2001	1200
2002	1100
2003	1200
2004	1300
2005	1500
2006	1700
2007	1800
2008	1800
2009	1700
2010	1600
2011	1500
2012	1400
2013	1300
2014	1200
2015	1100
2016	1000
2017	990
2018	970