2018 | 总访问次数
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 42.1% |
2 | Germany | 12 | 31.6% |
3 | United States | 9 | 23.7% |
4 | Korea, Republic of | 1 | 2.6% |
排名 | 国家/地区 | 数量 | 占比 |
1 | China | 16 | 42.1% |
2 | Germany | 12 | 31.6% |
3 | United States | 9 | 23.7% |
4 | Korea, Republic of | 1 | 2.6% |