
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 217 | 56.4% |
2 | United States | 114 | 29.6% |
3 | 23 | 6% | |
4 | Germany | 14 | 3.6% |
5 | Netherlands | 6 | 1.6% |
6 | Iran, Islamic Republic of | 5 | 1.3% |
7 | France | 3 | 0.8% |
8 | Belgium | 1 | 0.3% |
9 | Hong Kong | 1 | 0.3% |
10 | India | 1 | 0.3% |