2020 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 13 | 33.3% |
2 | Iran, Islamic Republic of | 5 | 12.8% |
3 | United Kingdom | 5 | 12.8% |
4 | United States | 5 | 12.8% |
5 | Germany | 3 | 7.7% |
6 | Netherlands | 3 | 7.7% |
7 | Russia | 2 | 5.1% |
8 | Sweden | 1 | 2.6% |
9 | Poland | 1 | 2.6% |
10 | Korea, Republic of | 1 | 2.6% |