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排名 | 国家/地区 | 数量 | 占比 |
1 | China | 261 | 63% |
2 | United States | 93 | 22.5% |
3 | Canada | 13 | 3.1% |
4 | Germany | 8 | 1.9% |
5 | Singapore | 6 | 1.4% |
6 | Ireland | 6 | 1.4% |
7 | Japan | 5 | 1.2% |
8 | Netherlands | 4 | 1% |
9 | France | 3 | 0.7% |
10 | Austria | 3 | 0.7% |
11 | Iran, Islamic Republic of | 2 | 0.5% |
12 | Norway | 2 | 0.5% |
13 | Romania | 2 | 0.5% |
14 | United Kingdom | 2 | 0.5% |
15 | Taiwan | 1 | 0.2% |
16 | Lithuania | 1 | 0.2% |
17 | Hong Kong | 1 | 0.2% |
18 | Brazil | 1 | 0.2% |
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