| YEAR | DATE | EVENT | PRESIDENT |
| 1990 | 22 december | Federal Republic | |
| 1991 | 15 may | Bailey Olter | |
| 1997 | 8 may | Jacob Nena | |
| 1999 | 12 may | Leo Amy Falcam | |
| 2003 | 11 may | Joseph J. Urusemal | |
| 2007 | 11 may | Manny Mori | |
| 2015 | 11 may | Peter M. Christian | |
| 2019 | 11 may | David W. Panuelo | |
| 2023 | 11 may | Wesley W. Simina |