2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 34% |
2 | United States | 15 | 31.9% |
3 | Germany | 12 | 25.5% |
4 | Netherlands | 4 | 8.5% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 34% |
2 | United States | 15 | 31.9% |
3 | Germany | 12 | 25.5% |
4 | Netherlands | 4 | 8.5% |