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 87 38.5%
2 United States 51 22.6%
3 Germany 25 11.1%
4 Korea, Republic of 11 4.9%
5 Sweden 10 4.4%
6 Australia 9 4%
7 India 9 4%
8 Netherlands 6 2.7%
9 Taiwan 6 2.7%
10 Ireland 5 2.2%
11 Senegal 3 1.3%
12 Singapore 2 0.9%
13 Italy 1 0.4%
14 United Kingdom 1 0.4%