2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 17 | 38.6% |
2 | China | 14 | 31.8% |
3 | Germany | 10 | 22.7% |
4 | Netherlands | 3 | 6.8% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 17 | 38.6% |
2 | China | 14 | 31.8% |
3 | Germany | 10 | 22.7% |
4 | Netherlands | 3 | 6.8% |