Year	Total
1970	1168000
1971	1118200
1972	1365900
1973	1415300
1974	1472500
1975	1282500
1976	1302500
1977	1476800
1978	1961200
1979	2240400
1980	2394200
1981	2624200
1982	2797600
1983	3073600
1984	3124700
1985	3187200
1986	3106300
1987	3273400
1988	3156600
1989	3190200
1990	3374500
1991	3341500
1992	3423000
1993	3351100
1994	3457000
1995	3624200
1996	3909600
1997	4878800
1998	5580000
1999	4895000
2000	5363400
2001	5553300
2002	5609200
2003	5376600
2004	5736500
2005	6027800
2006	6325400
2007	6786600
2008	8152700
2009	9455200
2010	10139000
2011	9861100
2012	10777000
2013	11370000
2014	10604000
2015	9983100
2016	9352900