2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 19 | 43.2% |
2 | Germany | 14 | 31.8% |
3 | United States | 10 | 22.7% |
4 | Republic of Korea | 1 | 2.3% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 19 | 43.2% |
2 | Germany | 14 | 31.8% |
3 | United States | 10 | 22.7% |
4 | Republic of Korea | 1 | 2.3% |