2017 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 34.6% |
2 | Germany | 16 | 30.8% |
3 | China | 9 | 17.3% |
4 | Nigeria | 4 | 7.7% |
5 | Canada | 2 | 3.8% |
6 | India | 1 | 1.9% |
7 | Korea, Republic of | 1 | 1.9% |
8 | Venezuela, Bolivarian Republic of | 1 | 1.9% |