Year	Total
1965	3878100
1966	4044900
1967	4216200
1968	4396300
1969	4584700
1970	4779900
1971	4985000
1972	5208000
1973	5509000
1974	5620000
1975	5795000
1976	6121000
1977	6397000
1978	6821000
1979	7481000
1980	8010000
1981	8154000
1982	7887000
1983	7437000
1984	6918000
1985	6508000
1986	6748000
1987	7557000
1988	8354000
1989	8571000
1990	8878000
1991	9110000
1992	9582000
1993	9949000
1994	11009000
1995	12362000
1996	12385000
1997	11678000
1998	12419000
1999	13228000
2000	13527000
2001	12514000
2002	12356000
2003	12629000
2004	11845000
2005	12186000
2006	11744000
2007	12340000
2008	12011000
2009	10801000
2010	11213000
2011	11844000
2012	13945000
2013	11463000
2014	10599000
2015	11367000
2016	11620000