2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 58.1% |
2 | Germany | 9 | 29% |
3 | United States | 3 | 9.7% |
4 | Korea, Republic of | 1 | 3.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 58.1% |
2 | Germany | 9 | 29% |
3 | United States | 3 | 9.7% |
4 | Korea, Republic of | 1 | 3.2% |