Year	Total
1985	8251900
1986	8649400
1987	8144300
1988	8344700
1989	8140400
1990	8542900
1991	8240000
1992	8031500
1993	8000800
1994	7266800
1995	6580200
1996	5936700
1997	5646300
1998	5947400
1999	5726800
2000	6330600
2001	3996900
2002	3665000
2003	4272000
2004	4484000
2005	5376000
2006	4806000
2007	4524000
2008	3590700
2009	3312100
2010	3216700
2011	3986900
2012	4168000
2013	4542900
2014	4446400
2015	4533300
2016	4613400