2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 20 | 50% |
2 | Germany | 9 | 22.5% |
3 | China | 6 | 15% |
4 | Netherlands | 3 | 7.5% |
5 | Republic of Korea | 2 | 5% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 20 | 50% |
2 | Germany | 9 | 22.5% |
3 | China | 6 | 15% |
4 | Netherlands | 3 | 7.5% |
5 | Republic of Korea | 2 | 5% |