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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 280 | 77.3% |
2 | United States | 49 | 13.5% |
3 | Germany | 8 | 2.2% |
4 | Japan | 8 | 2.2% |
5 | Canada | 6 | 1.7% |
6 | Morocco | 2 | 0.6% |
7 | Poland | 2 | 0.6% |
8 | Singapore | 2 | 0.6% |
9 | Mongolia | 1 | 0.3% |
10 | Argentina | 1 | 0.3% |
11 | Australia | 1 | 0.3% |
12 | Bangladesh | 1 | 0.3% |
13 | Bulgaria | 1 | 0.3% |
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