2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 21 | 42.9% |
2 | Germany | 8 | 16.3% |
3 | China | 7 | 14.3% |
4 | 4 | 8.2% | |
5 | Malaysia | 3 | 6.1% |
6 | Taiwan | 2 | 4.1% |
7 | Netherlands | 1 | 2% |
8 | Republic of Korea | 1 | 2% |
9 | Belgium | 1 | 2% |
10 | Italy | 1 | 2% |