Year	Total
1965	15000
1966	20000
1967	12000
1968	12000
1969	15000
1970	16000
1971	41000
1972	104000
1973	99000
1974	99000
1975	9000
1976	10000
1977	11000
1978	24000
1979	34000
1980	50000
1981	93000
1982	85000
1983	221000
1984	239000
1985	319000
1986	237000
1987	327000
1988	260000
1989	1197000
1990	1326000
1991	1562000
1992	1640000
1993	1371000
1994	1523000
1995	1669000
1996	1677000
1997	1622000
1998	1731000
1999	1940000
2000	2486000
2001	2971000
2002	3642000
2003	5316000
2004	6632000
2005	6889000
2006	7298000
2007	8847000
2008	9782000
2009	10623000
2010	14777000
2011	14772000
2012	15882000
2013	15067000
2014	15357000
2015	16879000
2016	19899000