2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 51.2% |
2 | Germany | 8 | 19.5% |
3 | United States | 7 | 17.1% |
4 | Korea, Republic of | 5 | 12.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 51.2% |
2 | Germany | 8 | 19.5% |
3 | United States | 7 | 17.1% |
4 | Korea, Republic of | 5 | 12.2% |