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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 179 | 62.6% |
2 | United States | 61 | 21.3% |
3 | Canada | 17 | 5.9% |
4 | Germany | 12 | 4.2% |
5 | Singapore | 7 | 2.4% |
6 | South Africa | 2 | 0.7% |
7 | Ireland | 2 | 0.7% |
8 | Japan | 2 | 0.7% |
9 | Mongolia | 1 | 0.3% |
10 | Netherlands | 1 | 0.3% |
11 | Taiwan | 1 | 0.3% |
12 | Australia | 1 | 0.3% |
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