2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 30 | 63.8% |
2 | Germany | 6 | 12.8% |
3 | United States | 6 | 12.8% |
4 | Korea, Republic of | 5 | 10.6% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 30 | 63.8% |
2 | Germany | 6 | 12.8% |
3 | United States | 6 | 12.8% |
4 | Korea, Republic of | 5 | 10.6% |