| 1. Japan | 2. USA | 3. China | 4. Russia |
1. Japan | 43,480 | 1382 | 1200 | 55 |
2. USA | 736 | 189,592 | 1161 | 71 |
3. China | 1764 | 4832 | 119,684 | 348 |
4. Russia | 173 | 164 | 333 | 13,755 |