2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Canada | 10 | 58.8% |
2 | China | 3 | 17.6% |
3 | Germany | 2 | 11.8% |
4 | Iran, Islamic Republic of | 2 | 11.8% |
排名 | 国家/地区 | 数量 | 占比 |
1 | Canada | 10 | 58.8% |
2 | China | 3 | 17.6% |
3 | Germany | 2 | 11.8% |
4 | Iran, Islamic Republic of | 2 | 11.8% |