Year	Total
1965	1485800
1966	3247100
1967	4755700
1968	4851500
1969	5863700
1970	6079000
1971	5142700
1972	5334700
1973	5241100
1974	3191200
1975	3038500
1976	792640
1977	794990
1978	964980
1979	1113200
1980	1931300
1981	1682700
1982	1709200
1983	1958300
1984	1915400
1985	1943100
1986	2169600
1987	2531200
1988	2643000
1989	2446600
1990	2869500
1991	2801100
1992	3064000
1993	3942000
1994	4360000
1995	4797000
1996	5520000
1997	6305000
1998	6968000
1999	7757000
2000	8270000
2001	8970000
2002	9848000
2003	10487000
2004	12465000
2005	12213000
2006	11972000
2007	13339000
2008	14077000
2009	14585000
2010	15585000
2011	16930000
2012	17106000
2013	17259000
2014	18035000
2015	18847000
2016	20067000