2021 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 37 | 37% |
2 | United States | 35 | 35% |
3 | Netherlands | 8 | 8% |
4 | Korea, Republic of | 7 | 7% |
5 | Germany | 5 | 5% |
6 | Malaysia | 2 | 2% |
7 | Switzerland | 2 | 2% |
8 | Taiwan | 2 | 2% |
9 | Canada | 1 | 1% |
10 | Italy | 1 | 1% |