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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 166 | 63.4% |
2 | United States | 67 | 25.6% |
3 | Canada | 10 | 3.8% |
4 | Germany | 5 | 1.9% |
5 | Singapore | 4 | 1.5% |
6 | Taiwan | 4 | 1.5% |
7 | Argentina | 2 | 0.8% |
8 | Bangladesh | 1 | 0.4% |
9 | Japan | 1 | 0.4% |
10 | Mongolia | 1 | 0.4% |
11 | Norway | 1 | 0.4% |
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