2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 19 | 59.4% |
2 | United States | 10 | 31.2% |
3 | Switzerland | 2 | 6.2% |
4 | Germany | 1 | 3.1% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 19 | 59.4% |
2 | United States | 10 | 31.2% |
3 | Switzerland | 2 | 6.2% |
4 | Germany | 1 | 3.1% |