2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 72 | 53.7% |
2 | United States | 28 | 20.9% |
3 | Germany | 9 | 6.7% |
4 | Korea, Republic of | 7 | 5.2% |
5 | Taiwan | 6 | 4.5% |
6 | Senegal | 4 | 3% |
7 | Hong Kong | 4 | 3% |
8 | Netherlands | 3 | 2.2% |
9 | Iran, Islamic Republic of | 1 | 0.7% |