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 221 45.9%
2 United States 87 18%
3 Netherlands 39 8.1%
4 Germany 38 7.9%
5 Argentina 37 7.7%
6 Canada 12 2.5%
7 Sweden 11 2.3%
8 Russia 9 1.9%
9 Taiwan 8 1.7%
10 Italy 4 0.8%
11 United Kingdom 3 0.6%
12 Switzerland 2 0.4%
13 Singapore 2 0.4%
14 Norway 2 0.4%
15 Austria 2 0.4%
16 Hong Kong 2 0.4%
17 Ireland 2 0.4%
18 Japan 1 0.2%