2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 203 | 52.9% |
2 | United States | 98 | 25.5% |
3 | Germany | 39 | 10.2% |
4 | Iran, Islamic Republic of | 11 | 2.9% |
5 | Netherlands | 10 | 2.6% |
6 | Ireland | 8 | 2.1% |
7 | Russia | 5 | 1.3% |
8 | Singapore | 2 | 0.5% |
9 | Turkey | 2 | 0.5% |
10 | Romania | 2 | 0.5% |
11 | Korea, Republic of | 2 | 0.5% |
12 | Mexico | 2 | 0.5% |