2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 39% |
2 | United States | 12 | 29.3% |
3 | Germany | 7 | 17.1% |
4 | Korea, Republic of | 4 | 9.8% |
5 | Romania | 2 | 4.9% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 39% |
2 | United States | 12 | 29.3% |
3 | Germany | 7 | 17.1% |
4 | Korea, Republic of | 4 | 9.8% |
5 | Romania | 2 | 4.9% |