2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 48 | 34.5% |
2 | United States | 40 | 28.8% |
3 | Netherlands | 22 | 15.8% |
4 | Korea, Republic of | 9 | 6.5% |
5 | Germany | 6 | 4.3% |
6 | Czech Republic | 4 | 2.9% |
7 | Canada | 4 | 2.9% |
8 | Russia | 3 | 2.2% |
9 | Australia | 2 | 1.4% |
10 | France | 1 | 0.7% |