2020 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 13 | 41.9% |
2 | China | 8 | 25.8% |
3 | France | 3 | 9.7% |
4 | United Kingdom | 2 | 6.5% |
5 | Canada | 1 | 3.2% |
6 | Germany | 1 | 3.2% |
7 | Iran, Islamic Republic of | 1 | 3.2% |
8 | Japan | 1 | 3.2% |
9 | Russia | 1 | 3.2% |