2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 30 | 60% |
2 | China | 9 | 18% |
3 | Canada | 8 | 16% |
4 | Germany | 2 | 4% |
5 | Czech Republic | 1 | 2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 30 | 60% |
2 | China | 9 | 18% |
3 | Canada | 8 | 16% |
4 | Germany | 2 | 4% |
5 | Czech Republic | 1 | 2% |