2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 51.4% |
2 | Germany | 7 | 20% |
3 | United States | 6 | 17.1% |
4 | Netherlands | 4 | 11.4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 51.4% |
2 | Germany | 7 | 20% |
3 | United States | 6 | 17.1% |
4 | Netherlands | 4 | 11.4% |