2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 14 | 37.8% |
2 | Germany | 13 | 35.1% |
3 | China | 7 | 18.9% |
4 | Taiwan | 2 | 5.4% |
5 | Iran, Islamic Republic of | 1 | 2.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 14 | 37.8% |
2 | Germany | 13 | 35.1% |
3 | China | 7 | 18.9% |
4 | Taiwan | 2 | 5.4% |
5 | Iran, Islamic Republic of | 1 | 2.7% |