2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 12 | 42.9% |
2 | Germany | 9 | 32.1% |
3 | United States | 4 | 14.3% |
4 | Czech Republic | 3 | 10.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 12 | 42.9% |
2 | Germany | 9 | 32.1% |
3 | United States | 4 | 14.3% |
4 | Czech Republic | 3 | 10.7% |