2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 11 | 44% |
2 | United States | 9 | 36% |
3 | China | 3 | 12% |
4 | India | 1 | 4% |
5 | Republic of Korea | 1 | 4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 11 | 44% |
2 | United States | 9 | 36% |
3 | China | 3 | 12% |
4 | India | 1 | 4% |
5 | Republic of Korea | 1 | 4% |