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 China 20 39.2%
2 United States 13 25.5%
3 Russia 5 9.8%
4 Japan 5 9.8%
5 Viet Nam 3 5.9%
6 Netherlands 2 3.9%
7 Korea, Republic of 1 2%
8 France 1 2%
9 Germany 1 2%