2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 19 | 38% |
2 | China | 14 | 28% |
3 | Germany | 10 | 20% |
4 | Netherlands | 5 | 10% |
5 | Republic of Korea | 2 | 4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 19 | 38% |
2 | China | 14 | 28% |
3 | Germany | 10 | 20% |
4 | Netherlands | 5 | 10% |
5 | Republic of Korea | 2 | 4% |