Year	Total
1971	19260
1972	18310
1973	16420
1974	57440
1975	44880
1976	52540
1977	53570
1978	69130
1979	36540
1980	25880
1981	4901
1982	21840
1983	20290
1984	20980
1985	32240
1986	14880
1987	15480
1988	14270
1989	24420
1990	24420
1991	27770
1992	27940
1993	29580
1994	31470
1995	32590
1996	38610
1997	84010
1998	587900
1999	660900
2000	829900
2001	1018000
2002	1090000
2003	934700
2004	1003000
2005	1140000
2006	1265000
2007	1381000
2008	1300000
2009	1457000
2010	1431000