2017 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 30 | 43.5% |
2 | Germany | 17 | 24.6% |
3 | United States | 11 | 15.9% |
4 | Nigeria | 4 | 5.8% |
5 | India | 3 | 4.3% |
6 | Iran, Islamic Republic of | 1 | 1.4% |
7 | Philippines | 1 | 1.4% |
8 | Taiwan | 1 | 1.4% |
9 | United Kingdom | 1 | 1.4% |