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 Finland 339 30.1%
2 United States 271 24%
3 China 225 19.9%
4 Germany 147 13%
5 Canada 117 10.4%
6 Netherlands 10 0.9%
7 Iran, Islamic Republic of 5 0.4%
8 Russia 5 0.4%
9 Taiwan 2 0.2%
10 United Kingdom 2 0.2%
11 Brazil 2 0.2%
12 India 1 0.1%
13 Romania 1 0.1%
14 Singapore 1 0.1%