2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 40 | 64.5% |
2 | China | 18 | 29% |
3 | Tanzania, United Republic of | 2 | 3.2% |
4 | Canada | 2 | 3.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 40 | 64.5% |
2 | China | 18 | 29% |
3 | Tanzania, United Republic of | 2 | 3.2% |
4 | Canada | 2 | 3.2% |