2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 28.4% |
2 | China | 16 | 21.6% |
3 | Germany | 12 | 16.2% |
4 | Sweden | 11 | 14.9% |
5 | Senegal | 6 | 8.1% |
6 | Netherlands | 5 | 6.8% |
7 | Russia | 1 | 1.4% |
8 | Moldova, Republic of | 1 | 1.4% |
9 | France | 1 | 1.4% |