2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 14 | 36.8% |
2 | United States | 11 | 28.9% |
3 | Germany | 9 | 23.7% |
4 | Netherlands | 4 | 10.5% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 14 | 36.8% |
2 | United States | 11 | 28.9% |
3 | Germany | 9 | 23.7% |
4 | Netherlands | 4 | 10.5% |