2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 9 | 39.1% |
2 | China | 8 | 34.8% |
3 | United States | 5 | 21.7% |
4 | Republic of Korea | 1 | 4.3% |
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 9 | 39.1% |
2 | China | 8 | 34.8% |
3 | United States | 5 | 21.7% |
4 | Republic of Korea | 1 | 4.3% |