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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 147 | 54% |
2 | United States | 70 | 25.7% |
3 | 13 | 4.8% | |
4 | Canada | 13 | 4.8% |
5 | Germany | 10 | 3.7% |
6 | Japan | 10 | 3.7% |
7 | Singapore | 2 | 0.7% |
8 | South Africa | 2 | 0.7% |
9 | Taiwan | 2 | 0.7% |
10 | Ukraine | 2 | 0.7% |
11 | France | 1 | 0.4% |
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