2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 38.9% |
2 | Germany | 10 | 18.5% |
3 | China | 9 | 16.7% |
4 | Netherlands | 5 | 9.3% |
5 | Brazil | 3 | 5.6% |
6 | Malaysia | 3 | 5.6% |
7 | France | 1 | 1.9% |
8 | Republic of Korea | 1 | 1.9% |
9 | Taiwan | 1 | 1.9% |