2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 16 | 29.6% |
2 | Germany | 13 | 24.1% |
3 | China | 12 | 22.2% |
4 | Korea, Republic of | 4 | 7.4% |
5 | Netherlands | 4 | 7.4% |
6 | Republic of Korea | 2 | 3.7% |
7 | Peru | 1 | 1.9% |
8 | France | 1 | 1.9% |
9 | Israel | 1 | 1.9% |