2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 17 | 37% |
2 | China | 13 | 28.3% |
3 | Germany | 9 | 19.6% |
4 | Netherlands | 6 | 13% |
5 | Republic of Korea | 1 | 2.2% |
排名 | 国家/地区 | 数量 | 占比 |
1 | United States | 17 | 37% |
2 | China | 13 | 28.3% |
3 | Germany | 9 | 19.6% |
4 | Netherlands | 6 | 13% |
5 | Republic of Korea | 1 | 2.2% |