2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 19 | 44.2% |
2 | Germany | 10 | 23.3% |
3 | China | 8 | 18.6% |
4 | Netherlands | 6 | 14% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 19 | 44.2% |
2 | Germany | 10 | 23.3% |
3 | China | 8 | 18.6% |
4 | Netherlands | 6 | 14% |