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 578 49.7%
2 United States 289 24.8%
3 Netherlands 110 9.5%
4 Germany 64 5.5%
5 France 39 3.4%
6 Korea, Republic of 17 1.5%
7 Taiwan 10 0.9%
8 Sweden 9 0.8%
9 Canada 9 0.8%
10 Cote D'ivoire 9 0.8%
11 Hong Kong 7 0.6%
12 Senegal 7 0.6%
13 India 6 0.5%
14 Russia 3 0.3%
15 Philippines 2 0.2%
16 Iran, Islamic Republic of 2 0.2%
17 Japan 1 0.1%
18 Singapore 1 0.1%