2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 19 | 35.2% |
2 | China | 12 | 22.2% |
3 | Germany | 12 | 22.2% |
4 | Netherlands | 3 | 5.6% |
5 | Republic of Korea | 2 | 3.7% |
6 | Romania | 2 | 3.7% |
7 | United Kingdom | 1 | 1.9% |
8 | Japan | 1 | 1.9% |
9 | Korea, Republic of | 1 | 1.9% |
10 | Finland | 1 | 1.9% |