Year	Total
1970	36000
1971	36000
1972	960000
1973	1480000
1974	1549000
1975	1527000
1976	1574000
1977	1661000
1978	1637000
1979	1790000
1980	2195000
1981	2341000
1982	2428000
1983	2331000
1984	2242000
1985	2222000
1986	2263000
1987	2367000
1988	2502000
1989	2639000
1990	2697000
1991	2681000
1992	2640400
1993	2634400
1994	2840700
1995	2838400
1996	2866300
1997	2416000
1998	2523300
1999	2031700
2000	2912100
2001	4240800
2002	5433400
2003	6244400
2004	8785400
2005	10839000
2006	11607000
2007	12432000
2008	12863000
2009	11081000
2010	12791000
2011	14021000
2012	15985000
2013	18257000
2014	18911000
2015	18243000
2016	17751000