2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 16 | 28.1% |
2 | China | 15 | 26.3% |
3 | Germany | 12 | 21.1% |
4 | Netherlands | 6 | 10.5% |
5 | India | 3 | 5.3% |
6 | Taiwan | 2 | 3.5% |
7 | Republic of Korea | 1 | 1.8% |
8 | Singapore | 1 | 1.8% |
9 | Israel | 1 | 1.8% |