2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 28 | 42.4% |
2 | China | 26 | 39.4% |
3 | Germany | 9 | 13.6% |
4 | Iran, Islamic Republic of | 1 | 1.5% |
5 | Republic of Korea | 1 | 1.5% |
6 | Singapore | 1 | 1.5% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 28 | 42.4% |
2 | China | 26 | 39.4% |
3 | Germany | 9 | 13.6% |
4 | Iran, Islamic Republic of | 1 | 1.5% |
5 | Republic of Korea | 1 | 1.5% |
6 | Singapore | 1 | 1.5% |