| J | F | M | A | M | J | J | A | S | O | N | D | 国家 | 地点 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 111 | 111 | 111 | 111 | Madagascar | Lake Alaotra | ||||||||
| 111 | 111 | 111 | 111 | 111 | Rwanda | Lake Ihema, 1981 | |||||||
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | Madagascar | Lake Itasy | |||||
| 111 | 111 | 111 | 111 | 111 | 111 | 111 | Zimbabwe | Lake McIlwaine | |||||
| 111 | 111 | 111 | 111 | 111 | 111 | Zimbabwe | Upper Zambezi | ||||||
| 111 | 111 | 111 | 111 | 111 | 111 | Zimbabwe | Upper Zambezi |