2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 32.8% |
2 | China | 16 | 25% |
3 | Germany | 12 | 18.8% |
4 | Netherlands | 5 | 7.8% |
5 | Taiwan | 4 | 6.2% |
6 | Republic of Korea | 2 | 3.1% |
7 | Japan | 2 | 3.1% |
8 | Australia | 1 | 1.6% |
9 | India | 1 | 1.6% |