2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 10 | 40% |
2 | Germany | 7 | 28% |
3 | China | 4 | 16% |
4 | Republic of Korea | 2 | 8% |
5 | Taiwan | 2 | 8% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 10 | 40% |
2 | Germany | 7 | 28% |
3 | China | 4 | 16% |
4 | Republic of Korea | 2 | 8% |
5 | Taiwan | 2 | 8% |