Year	Total
1985	25396000
1986	30004000
1987	29676000
1988	28747000
1989	26917000
1990	24889000
1991	24066000
1992	20503000
1993	14523000
1994	11807000
1995	10696000
1996	10510000
1997	9157000
1998	8646000
1999	7929000
2000	7818000
2001	7639000
2002	7956000
2003	8134000
2004	8118000
2005	7524000
2006	8802000
2007	8021000
2008	7908000
2009	9274000
2010	7475000
2011	8597000
2012	10446000
2013	7136000
2014	8127000
2015	7706700
2016	7536600