2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 38 | 33.3% |
2 | United States | 29 | 25.4% |
3 | Netherlands | 19 | 16.7% |
4 | Korea, Republic of | 9 | 7.9% |
5 | Germany | 6 | 5.3% |
6 | Czech Republic | 4 | 3.5% |
7 | Canada | 4 | 3.5% |
8 | Belgium | 2 | 1.8% |
9 | Singapore | 2 | 1.8% |
10 | France | 1 | 0.9% |