2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 38.2% |
2 | Germany | 13 | 23.6% |
3 | China | 9 | 16.4% |
4 | Netherlands | 4 | 7.3% |
5 | Romania | 3 | 5.5% |
6 | Republic of Korea | 2 | 3.6% |
7 | Israel | 1 | 1.8% |
8 | Morocco | 1 | 1.8% |
9 | United Kingdom | 1 | 1.8% |