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 234 33.2%
2 Finland 168 23.8%
3 United States 147 20.9%
4 Germany 79 11.2%
5 Canada 59 8.4%
6 Netherlands 4 0.6%
7 Hong Kong 3 0.4%
8 Iran, Islamic Republic of 3 0.4%
9 Japan 2 0.3%
10 India 2 0.3%
11 Mauritius 1 0.1%
12 Ireland 1 0.1%
13 Singapore 1 0.1%
14 United Kingdom 1 0.1%