Year	Airplane Crashes
1970	2
1971	6
1972	7
1973	6
1974	7
1975	2
1976	2
1977	3
1978	5
1979	4
1980	0
1981	4
1982	4
1983	4
1984	1
1985	4
1986	2
1987	4
1988	3
1989	8
1990	6
1991	4
1992	4
1993	1
1994	4
1995	2
1996	3
1997	3
1998	1
1999	2