2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 16 | 30.2% |
2 | Germany | 12 | 22.6% |
3 | China | 8 | 15.1% |
4 | Netherlands | 5 | 9.4% |
5 | Romania | 3 | 5.7% |
6 | Taiwan | 2 | 3.8% |
7 | Korea, Republic of | 2 | 3.8% |
8 | Ukraine | 1 | 1.9% |
9 | Republic of Korea | 1 | 1.9% |
10 | Finland | 1 | 1.9% |
11 | Italy | 1 | 1.9% |
12 | Japan | 1 | 1.9% |