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 185 25.7%
2 Finland 184 25.5%
3 China 180 25%
4 Germany 93 12.9%
5 Canada 64 8.9%
6 Uzbekistan 3 0.4%
7 Iran, Islamic Republic of 3 0.4%
8 Netherlands 2 0.3%
9 Singapore 2 0.3%
10 Taiwan 2 0.3%
11 Mauritius 1 0.1%
12 India 1 0.1%
13 Czech Republic 1 0.1%