BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 187 50.4%
2 United States 78 21%
3 Germany 33 8.9%
4 Netherlands 27 7.3%
5 Taiwan 12 3.2%
6 Canada 12 3.2%
7 Singapore 7 1.9%
8 Russia 3 0.8%
9 3 0.8%
10 Mexico 2 0.5%
11 Sweden 2 0.5%
12 Thailand 2 0.5%
13 Mauritius 1 0.3%
14 Belgium 1 0.3%
15 France 1 0.3%