2017 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | Germany | 18 | 42.9% |
2 | United States | 7 | 16.7% |
3 | Netherlands | 6 | 14.3% |
4 | China | 6 | 14.3% |
5 | France | 1 | 2.4% |
6 | India | 1 | 2.4% |
7 | Japan | 1 | 2.4% |
8 | Republic of Korea | 1 | 2.4% |
9 | Australia | 1 | 2.4% |