2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 41.9% |
2 | China | 17 | 39.5% |
3 | Germany | 7 | 16.3% |
4 | Netherlands | 1 | 2.3% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 41.9% |
2 | China | 17 | 39.5% |
3 | Germany | 7 | 16.3% |
4 | Netherlands | 1 | 2.3% |