2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 17 | 44.7% |
2 | United States | 11 | 28.9% |
3 | Germany | 7 | 18.4% |
4 | Netherlands | 3 | 7.9% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 17 | 44.7% |
2 | United States | 11 | 28.9% |
3 | Germany | 7 | 18.4% |
4 | Netherlands | 3 | 7.9% |