Year	Total
1970	2668700
1971	3477600
1972	4500500
1973	5560500
1974	7001800
1975	8229200
1976	9391500
1977	11270000
1978	12767000
1979	13492000
1980	13269000
1981	11846000
1982	11093000
1983	11353000
1984	11558000
1985	12023000
1986	12795000
1987	12916000
1988	13260000
1989	13993000
1990	14225000
1991	14403000
1992	14682000
1993	15589000
1994	16327000
1995	16688000
1996	18703000
1997	21110000
1998	21646000
1999	23430000
2000	25323000
2001	28236000
2002	30407000
2003	32599000
2004	38599000
2005	45917000
2006	54513000
2007	64462000
2008	74759000
2009	79385000
2010	89181000
2011	98069000
2012	100650000
2013	109980000
2014	118440000
2015	122500000
2016	124550000