2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 24 | 47.1% |
2 | China | 15 | 29.4% |
3 | Germany | 10 | 19.6% |
4 | Republic of Korea | 2 | 3.9% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 24 | 47.1% |
2 | China | 15 | 29.4% |
3 | Germany | 10 | 19.6% |
4 | Republic of Korea | 2 | 3.9% |