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 United States 60 31.1%
2 China 50 25.9%
3 Germany 23 11.9%
4 Netherlands 19 9.8%
5 Sweden 6 3.1%
6 France 4 2.1%
7 United Kingdom 4 2.1%
8 Singapore 3 1.6%
9 Philippines 3 1.6%
10 Russia 3 1.6%
11 Hong Kong 3 1.6%
12 Canada 3 1.6%
13 Australia 2 1%
14 Ireland 2 1%
15 Senegal 2 1%
16 Moldova, Republic of 2 1%
17 Taiwan 2 1%
18 Israel 1 0.5%
19 Egypt 1 0.5%