Year	Total
1972	97730
1973	146190
1974	97463
1975	146190
1976	195460
1977	487320
1978	389850
1979	389850
1980	293190
1981	730970
1982	1656900
1983	2095500
1984	2296700
1985	2923900
1986	3606100
1987	4532000
1988	4691100
1989	5457900
1990	5896500
1991	6919900
1992	7671800
1993	8186900
1994	9015400
1995	9064100
1996	10164000
1997	11208000
1998	11598000
1999	14571000
2000	17738000
2001	16959000
2002	18079000
2003	17933000
2004	19057000
2005	18517000
2006	16839000
2007	15169000
2008	14035000
2009	12903000
2010	12157000
2011	10941000
2012	9980000
2013	8682900
2014	8130400
2015	7689800
2016	6924100