2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 36.8% |
2 | Germany | 12 | 21.1% |
3 | China | 11 | 19.3% |
4 | Netherlands | 3 | 5.3% |
5 | Romania | 3 | 5.3% |
6 | Republic of Korea | 2 | 3.5% |
7 | Peru | 1 | 1.8% |
8 | India | 1 | 1.8% |
9 | Ireland | 1 | 1.8% |
10 | Korea, Republic of | 1 | 1.8% |
11 | United Kingdom | 1 | 1.8% |