2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 39.6% |
2 | United States | 15 | 28.3% |
3 | Germany | 12 | 22.6% |
4 | Netherlands | 5 | 9.4% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 21 | 39.6% |
2 | United States | 15 | 28.3% |
3 | Germany | 12 | 22.6% |
4 | Netherlands | 5 | 9.4% |