2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 24 | 48% |
2 | Germany | 11 | 22% |
3 | China | 9 | 18% |
4 | Netherlands | 4 | 8% |
5 | Republic of Korea | 2 | 4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 24 | 48% |
2 | Germany | 11 | 22% |
3 | China | 9 | 18% |
4 | Netherlands | 4 | 8% |
5 | Republic of Korea | 2 | 4% |