2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 168 | 55.8% |
2 | United States | 81 | 26.9% |
3 | Germany | 20 | 6.6% |
4 | France | 13 | 4.3% |
5 | Netherlands | 9 | 3% |
6 | Korea, Republic of | 6 | 2% |
7 | Japan | 2 | 0.7% |
8 | Russia | 1 | 0.3% |
9 | Switzerland | 1 | 0.3% |