| �� | | | | | | | | | | | | | | | | | | 1956 | | 1999 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1983 ; 1980 | | ; 1980 | ; 1959 | 1983 1958 1984 | ; 1950 | | 1956 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ; | | | |