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| YEAR | DATE | EVENT | PRESIDENT | PRIME MINISTER |
| 1975 | 30 december | Democratic Republic | amm. Didier Ratsiraka (I) | |
| 1976 | 11 january | col. Joel Rakotomalala | ||
| 1976 | 12 august | Justin Rakotoniaina | ||
| 1977 | 1 august | col. Désiré Rakotoarijaona | ||
| 1988 | 12 february | col. Victor Ramahatra | ||
| 1991 | 8 august | Guy Razanamasy |