2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 8 | 29.6% |
2 | China | 5 | 18.5% |
3 | United States | 4 | 14.8% |
4 | Canada | 4 | 14.8% |
5 | Chile | 2 | 7.4% |
6 | Iran, Islamic Republic of | 1 | 3.7% |
7 | Korea, Republic of | 1 | 3.7% |
8 | Netherlands | 1 | 3.7% |
9 | Turkey | 1 | 3.7% |