Year	Total
1971	1378
1972	1431
1973	1467
1974	1520
1975	1576
1976	1623
1977	1673
1978	1735
1979	1807
1980	1877
1981	1569
1982	1588
1983	1610
1984	1618
1985	1632
1986	1223
1987	1243
1988	1273
1989	1282
1990	1253
1991	1268
1992	1347
1993	1339
1994	1373
1995	1392
1996	1596
1997	1588
1998	1626
1999	1619
2000	1542
2001	1543
2002	1733
2003	1673
2004	1654
2005	1921
2006	1968
2007	2006
2008	1989
2009	1867