2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 40% |
2 | United States | 16 | 35.6% |
3 | Germany | 6 | 13.3% |
4 | Korea, Republic of | 4 | 8.9% |
5 | India | 1 | 2.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 18 | 40% |
2 | United States | 16 | 35.6% |
3 | Germany | 6 | 13.3% |
4 | Korea, Republic of | 4 | 8.9% |
5 | India | 1 | 2.2% |