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 405 40.9%
2 Netherlands 210 21.2%
3 United States 174 17.6%
4 Germany 99 10%
5 France 36 3.6%
6 Canada 25 2.5%
7 Sweden 11 1.1%
8 Japan 6 0.6%
9 Russia 6 0.6%
10 United Kingdom 5 0.5%
11 Hong Kong 3 0.3%
12 Australia 3 0.3%
13 Brazil 2 0.2%
14 Singapore 2 0.2%
15 Denmark 1 0.1%
16 India 1 0.1%
17 Iran, Islamic Republic of 1 0.1%