2020 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 10 | 47.6% |
2 | Germany | 5 | 23.8% |
3 | France | 3 | 14.3% |
4 | China | 2 | 9.5% |
5 | Iran, Islamic Republic of | 1 | 4.8% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 10 | 47.6% |
2 | Germany | 5 | 23.8% |
3 | France | 3 | 14.3% |
4 | China | 2 | 9.5% |
5 | Iran, Islamic Republic of | 1 | 4.8% |