2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 15 | 46.9% |
2 | Germany | 9 | 28.1% |
3 | China | 6 | 18.8% |
4 | Netherlands | 2 | 6.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 15 | 46.9% |
2 | Germany | 9 | 28.1% |
3 | China | 6 | 18.8% |
4 | Netherlands | 2 | 6.2% |