2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 221 | 72% |
2 | United States | 37 | 12.1% |
3 | Germany | 36 | 11.7% |
4 | Denmark | 4 | 1.3% |
5 | Netherlands | 3 | 1% |
6 | Korea, Republic of | 2 | 0.7% |
7 | Malaysia | 2 | 0.7% |
8 | Russia | 1 | 0.3% |
9 | Japan | 1 | 0.3% |