Year	Total
1960	1266
1961	1315
1962	1279
1963	1323
1964	1347
1965	1367
1966	1454
1967	1467
1968	1417
1969	1535
1970	1408
1971	1384
1972	1407
1973	1401
1974	1440
1975	1327
1976	1161
1977	1639
1978	1735
1979	1809
1980	1481
1981	1247
1982	1450
1983	1595
1984	1742
1985	1943
1986	1848
1987	1949
1988	2215
1989	2492
1990	3393
1991	3395
1992	2943
1993	3277
1994	3486
1995	3318
1996	3793
1997	3748
1998	3732
1999	3370
2000	3846
2001	4096
2002	3643
2003	4336
2004	3895
2005	3614
2006	4365
2007	4649
2008	4487
2009	4885
2010	5964