Year	Total
1970	1455000
1971	1214000
1972	1376000
1973	1620000
1974	2050000
1975	2439000
1976	2633000
1977	3705000
1978	5109000
1979	6273000
1980	8752000
1981	10204000
1982	10815000
1983	10561000
1984	16380000
1985	16920000
1986	22680000
1987	24120000
1988	26190000
1989	26820000
1990	30168000
1991	31653000
1992	34425000
1993	36036000
1994	38493000
1995	38637000
1996	39969000
1997	40806000
1998	42138000
1999	41580000
2000	44829000
2001	48321000
2002	51030000
2003	54054000
2004	59112000
2005	64116000
2006	66115000
2007	66978000
2008	72396000
2009	70605000
2010	78894000
2011	83034000
2012	89397000
2013	90027000
2014	92142000
2015	94005000
2016	98439000