Year	Total
1970	591750
1971	627080
1972	687830
1973	686020
1974	776480
1975	994050
1976	1207600
1977	1289700
1978	1440500
1979	1791400
1980	1059500
1981	1849700
1982	2425100
1983	2885400
1984	3304600
1985	4042100
1986	5647800
1987	6505900
1988	7621200
1989	9061200
1990	10840000
1991	12072000
1992	13497000
1993	13715000
1994	14827000
1995	16904000
1996	18450000
1997	20060000
1998	22014000
1999	22557000
2000	23716000
2001	23777000
2002	24830000
2003	26581000
2004	26311000
2005	26661000
2006	26357000
2007	27084000
2008	27483000
2009	33803000
2010	44349000
2011	40060000
2012	34990000
2013	28926000
2014	27460000
2015	26367000
2016	24866000