
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 46 | 64.8% |
2 | United States | 11 | 15.5% |
3 | Germany | 9 | 12.7% |
4 | Bulgaria | 2 | 2.8% |
5 | Canada | 2 | 2.8% |
6 | Norway | 1 | 1.4% |





排名 | 国家/地区 | 数量 | 占比 |
1 | China | 46 | 64.8% |
2 | United States | 11 | 15.5% |
3 | Germany | 9 | 12.7% |
4 | Bulgaria | 2 | 2.8% |
5 | Canada | 2 | 2.8% |
6 | Norway | 1 | 1.4% |