Year	ages 15+
1990	8100
1991	16000
1992	18000
1993	13000
1994	13000
1995	14000
1996	15000
1997	17000
1998	19000
1999	23000
2000	25000
2001	25000
2002	24000
2003	22000
2004	21000
2005	20000
2006	19000
2007	18000
2008	17000
2009	15000
2010	14000
2011	14000
2012	13000
2013	13000
2014	13000
2015	12000
2016	11000
2017	11000
2018	9800