2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 31.6% |
2 | China | 15 | 26.3% |
3 | Germany | 13 | 22.8% |
4 | Netherlands | 3 | 5.3% |
5 | Romania | 3 | 5.3% |
6 | United Kingdom | 2 | 3.5% |
7 | Republic of Korea | 1 | 1.8% |
8 | Republic of Lithuania | 1 | 1.8% |
9 | Korea, Republic of | 1 | 1.8% |