				1922
			1941	1943
		1961	1962	1966	1968
	1971	1973	1975	1977	1978	1979
1980	1981	1983	1984	1985	1986	1987	1988	1989
1990	1991	1992	1993	1994	1996	1997	1998	1999
			2001	2002