2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 41 | 50% |
2 | United States | 19 | 23.2% |
3 | Germany | 14 | 17.1% |
4 | India | 3 | 3.7% |
5 | Korea, Republic of | 1 | 1.2% |
6 | Peru | 1 | 1.2% |
7 | Republic of Korea | 1 | 1.2% |
8 | 1 | 1.2% | |
9 | Czech Republic | 1 | 1.2% |