[n = 6]
| Year / Period | From | To | Established | Ecol. effects |
|---|---|---|---|---|
| unknown | Unknown | Colombia | established | |
| unknown | Unknown | Philippines | unknown | |
| 1950 - 1959 | Hong Kong | Thailand | established | |
| 1950 - 1959 | Japan | Thailand | established | |
| 1971 | Unknown | Canada | unknown | |
| 1971 | Unknown | USA | unknown |