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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 205 | 62.3% |
2 | United States | 90 | 27.4% |
3 | Mongolia | 12 | 3.6% |
4 | Germany | 11 | 3.3% |
5 | Netherlands | 3 | 0.9% |
6 | France | 2 | 0.6% |
7 | Argentina | 1 | 0.3% |
8 | Canada | 1 | 0.3% |
9 | Singapore | 1 | 0.3% |
10 | South Africa | 1 | 0.3% |
11 | Ireland | 1 | 0.3% |
12 | Japan | 1 | 0.3% |
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