2020 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 40 | 47.1% |
2 | United States | 22 | 25.9% |
3 | Germany | 7 | 8.2% |
4 | Iran, Islamic Republic of | 5 | 5.9% |
5 | Taiwan | 4 | 4.7% |
6 | Hong Kong | 4 | 4.7% |
7 | Czech Republic | 1 | 1.2% |
8 | Portugal | 1 | 1.2% |
9 | Russia | 1 | 1.2% |