| Country | ISO Code | Count | |
|---|---|---|---|
| Vietnam | VN | 9 | |
| Malaysia, Sabah, Spratly Isl, Sarawak | MY | 8 | |
| Aleutian Isl, Hawaiian Isl, United States | US | 7 | |
| Andaman Isl, Assam, India | IN | 6 | |
| Philippines | PH | 5 | |
| El Salvador | SV | 4 | |
| China | CN | 4 | |
| Thailand | TH | 2 | |
| Cambodia | KH | 2 | |
| Laos | LA | 2 | |
| Burma, Myanmar | MM | 1 | |
| Total | 50 |