2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 34 | 35.4% |
2 | United States | 24 | 25% |
3 | Netherlands | 19 | 19.8% |
4 | Germany | 8 | 8.3% |
5 | Korea, Republic of | 4 | 4.2% |
6 | Iran, Islamic Republic of | 3 | 3.1% |
7 | Taiwan | 2 | 2.1% |
8 | Hong Kong | 1 | 1% |
9 | India | 1 | 1% |