2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 39 | 56.5% |
2 | Canada | 9 | 13% |
3 | United States | 5 | 7.2% |
4 | Iran, Islamic Republic of | 3 | 4.3% |
5 | Japan | 3 | 4.3% |
6 | Netherlands | 2 | 2.9% |
7 | Belgium | 2 | 2.9% |
8 | Germany | 2 | 2.9% |
9 | Italy | 2 | 2.9% |
10 | Sweden | 1 | 1.4% |
11 | Switzerland | 1 | 1.4% |