2017 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 16 | 43.2% |
2 | United States | 12 | 32.4% |
3 | China | 8 | 21.6% |
4 | Netherlands | 1 | 2.7% |
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 16 | 43.2% |
2 | United States | 12 | 32.4% |
3 | China | 8 | 21.6% |
4 | Netherlands | 1 | 2.7% |