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 174 39.3%
2 United States 134 30.2%
3 Germany 39 8.8%
4 Netherlands 29 6.5%
5 Russia 14 3.2%
6 Korea, Republic of 9 2%
7 Kenya 8 1.8%
8 Israel 7 1.6%
9 Canada 7 1.6%
10 France 4 0.9%
11 Cote D'ivoire 4 0.9%
12 Hong Kong 4 0.9%
13 Romania 3 0.7%
14 Taiwan 2 0.5%
15 India 2 0.5%
16 Finland 2 0.5%
17 United Kingdom 1 0.2%