Year	Total
1965	3670000
1966	4084000
1967	3620000
1968	3935000
1969	4180000
1970	4630000
1971	4760000
1972	5108000
1973	5221000
1974	5694000
1975	5913000
1976	6203000
1977	6391000
1978	6484000
1979	6645000
1980	7034000
1981	7180000
1982	8063000
1983	8872000
1984	9969000
1985	11933000
1986	13132000
1987	13864000
1988	13404000
1989	15105000
1990	16038000
1991	17133000
1992	17071000
1993	15796000
1994	15843000
1995	16538000
1996	18603000
1997	20782000
1998	21562000
1999	20034000
2000	22461000
2001	18453000
2002	19273000
2003	20816000
2004	22086000
2005	22157000
2006	26168000
2007	29464000
2008	29596000
2009	30898000
2010	31438000
2011	33879000
2012	36495000
2013	31564000
2014	36126000
2015	34740000
2016	38435000