2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 16 | 33.3% |
2 | China | 11 | 22.9% |
3 | Germany | 7 | 14.6% |
4 | Japan | 4 | 8.3% |
5 | Taiwan | 4 | 8.3% |
6 | Netherlands | 2 | 4.2% |
7 | Republic of Korea | 1 | 2.1% |
8 | Canada | 1 | 2.1% |
9 | Finland | 1 | 2.1% |
10 | France | 1 | 2.1% |