2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 60.5% |
2 | United States | 7 | 18.4% |
3 | Germany | 5 | 13.2% |
4 | Korea, Republic of | 3 | 7.9% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 60.5% |
2 | United States | 7 | 18.4% |
3 | Germany | 5 | 13.2% |
4 | Korea, Republic of | 3 | 7.9% |