2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 44 | 44% |
2 | United States | 28 | 28% |
3 | Netherlands | 13 | 13% |
4 | Germany | 8 | 8% |
5 | Korea, Republic of | 7 | 7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 44 | 44% |
2 | United States | 28 | 28% |
3 | Netherlands | 13 | 13% |
4 | Germany | 8 | 8% |
5 | Korea, Republic of | 7 | 7% |