2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 46.7% |
2 | Germany | 11 | 24.4% |
3 | China | 8 | 17.8% |
4 | Netherlands | 3 | 6.7% |
5 | Republic of Korea | 2 | 4.4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 46.7% |
2 | Germany | 11 | 24.4% |
3 | China | 8 | 17.8% |
4 | Netherlands | 3 | 6.7% |
5 | Republic of Korea | 2 | 4.4% |