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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 178 | 56.5% |
2 | United States | 93 | 29.5% |
3 | Canada | 22 | 7% |
4 | Japan | 7 | 2.2% |
5 | Germany | 6 | 1.9% |
6 | Singapore | 2 | 0.6% |
7 | South Africa | 2 | 0.6% |
8 | Ireland | 2 | 0.6% |
9 | Mongolia | 1 | 0.3% |
10 | Hong Kong | 1 | 0.3% |
11 | Bangladesh | 1 | 0.3% |
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