2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 9 | 36% |
2 | China | 7 | 28% |
3 | United States | 6 | 24% |
4 | 2 | 8% | |
5 | Republic of Korea | 1 | 4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 9 | 36% |
2 | China | 7 | 28% |
3 | United States | 6 | 24% |
4 | 2 | 8% | |
5 | Republic of Korea | 1 | 4% |