Year	Total
1965	26481000
1966	33872000
1967	39076000
1968	42904000
1969	44784000
1970	48208000
1971	37099000
1972	50098000
1973	50888000
1974	47355000
1975	45754000
1976	50602000
1977	54054000
1978	57737000
1979	57550000
1980	51750000
1981	46830000
1982	46847000
1983	45866000
1984	49472000
1985	49997000
1986	51796000
1987	52639000
1988	53569000
1989	54656000
1990	57477000
1991	57680000
1992	56630000
1993	56670000
1994	56378000
1995	56596000
1996	59342000
1997	60326000
1998	61779000
1999	63930000
2000	66787000
2001	65751000
2002	70894000
2003	79005000
2004	83551000
2005	86438000
2006	86202000
2007	86482000
2008	85620000
2009	77234000
2010	73775000
2011	71675000
2012	67212000
2013	64784000
2014	68771000
2015	67225000
2016	68487000