2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 44.2% |
2 | United States | 20 | 38.5% |
3 | Germany | 7 | 13.5% |
4 | Netherlands | 2 | 3.8% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 44.2% |
2 | United States | 20 | 38.5% |
3 | Germany | 7 | 13.5% |
4 | Netherlands | 2 | 3.8% |