Year	Total
1970	47091000
1971	51280000
1972	57585000
1973	61380000
1974	59251000
1975	60694000
1976	60610000
1977	63779000
1978	61241000
1979	66992000
1980	63643000
1981	61260000
1982	63143000
1983	59276000
1984	64408000
1985	69389000
1986	64708000
1987	70419000
1988	81821000
1989	86866000
1990	88896000
1991	94722000
1992	104910000
1993	115940000
1994	124970000
1995	133380000
1996	138220000
1997	140550000
1998	144430000
1999	146000000
2000	151010000
2001	154220000
2002	154980000
2003	149810000
2004	150750000
2005	153670000
2006	154520000
2007	148910000
2008	143410000
2009	132840000
2010	130060000
2011	130000000
2012	127010000
2013	127260000
2014	132440000
2015	134200000
2016	136790000