2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 47.9% |
2 | United States | 15 | 31.2% |
3 | Germany | 7 | 14.6% |
4 | Netherlands | 3 | 6.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 23 | 47.9% |
2 | United States | 15 | 31.2% |
3 | Germany | 7 | 14.6% |
4 | Netherlands | 3 | 6.2% |