BPG is committed to discovery and dissemination of knowledge
Total Visits of This Article
2021 | Number of total visits
Rank Countries/Territories Count Percent
1 United States 23 27.1%
2 China 22 25.9%
3 Netherlands 21 24.7%
4 Germany 11 12.9%
5 Hong Kong 3 3.5%
6 France 3 3.5%
7 Sweden 1 1.2%
8 Canada 1 1.2%