Year	Annual Number
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	6000
1986	0
1987	0
1988	300100
1989	0
1990	0
1991	0
1992	0
1993	0
1994	580000
1995	0
1996	0
1997	0
1998	107000
1999	117100
2000	5504
2001	90120
2002	200
2003	210000
2004	29990
2005	4064
2006	13040
2007	55090
2008	0