2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 13 | 43.3% |
2 | Germany | 9 | 30% |
3 | Netherlands | 4 | 13.3% |
4 | United States | 4 | 13.3% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 13 | 43.3% |
2 | Germany | 9 | 30% |
3 | Netherlands | 4 | 13.3% |
4 | United States | 4 | 13.3% |