2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 36% |
2 | China | 15 | 30% |
3 | Germany | 11 | 22% |
4 | Netherlands | 5 | 10% |
5 | Republic of Korea | 1 | 2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 18 | 36% |
2 | China | 15 | 30% |
3 | Germany | 11 | 22% |
4 | Netherlands | 5 | 10% |
5 | Republic of Korea | 1 | 2% |