2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 146 | 50% |
2 | United States | 89 | 30.5% |
3 | Germany | 43 | 14.7% |
4 | Korea, Republic of | 3 | 1% |
5 | Taiwan | 3 | 1% |
6 | Spain | 2 | 0.7% |
7 | Norway | 2 | 0.7% |
8 | Romania | 1 | 0.3% |
9 | Singapore | 1 | 0.3% |
10 | Canada | 1 | 0.3% |
11 | United Kingdom | 1 | 0.3% |