| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1934 | | | | | 1951 | | | | | | | 1953 | | | — | 1954 | | 1956 | 1961 | 1983 | | 1983 | | | | | | | | — | | | | | | | | | | | | | | | | | | | | | | | | | | 2006 6 12 | | | | | | |