2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 22 | 41.5% |
2 | Germany | 14 | 26.4% |
3 | China | 8 | 15.1% |
4 | India | 3 | 5.7% |
5 | Netherlands | 2 | 3.8% |
6 | Portugal | 1 | 1.9% |
7 | Chile | 1 | 1.9% |
8 | Korea, Republic of | 1 | 1.9% |
9 | Finland | 1 | 1.9% |