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 United States 32 30.2%
2 Germany 27 25.5%
3 Netherlands 18 17%
4 China 11 10.4%
5 India 5 4.7%
6 France 4 3.8%
7 Iraq 3 2.8%
8 Italy 2 1.9%
9 Portugal 2 1.9%
10 Russia 1 0.9%
11 Iran, Islamic Republic of 1 0.9%