2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 43.8% |
2 | Germany | 14 | 29.2% |
3 | United States | 11 | 22.9% |
4 | Czech Republic | 2 | 4.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 43.8% |
2 | Germany | 14 | 29.2% |
3 | United States | 11 | 22.9% |
4 | Czech Republic | 2 | 4.2% |