BPG is committed to discovery and dissemination of knowledge
Total Visits of This Article
2020 | Number of total visits
Rank Countries/Territories Count Percent
1 United States 13 39.4%
2 China 8 24.2%
3 Russia 5 15.2%
4 Germany 4 12.1%
5 Hong Kong 1 3%
6 France 1 3%
7 Ukraine 1 3%