Year	Total
1970	4401800
1971	4539100
1972	4801400
1973	4870800
1974	4715000
1975	4852800
1976	5282200
1977	5559800
1978	5961800
1979	5348900
1980	4543000
1981	4037700
1982	3721200
1983	3638100
1984	3996100
1985	4132600
1986	3751900
1987	3769300
1988	3740800
1989	3463800
1990	2377900
1991	2658200
1992	2559800
1993	3270900
1994	3099300
1995	3169200
1996	3140200
1997	3204100
1998	3248600
1999	3102200
2000	3313400
2001	3492000
2002	3569200
2003	3611300
2004	3925600
2005	3884400
2006	3880400
2007	3896700
2008	3689900
2009	3679900
2010	3693000
2011	3849800
2012	3906800
2013	3823100
2014	3726300
2015	3682900
2016	3552700