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 258 55.4%
2 United States 72 15.5%
3 Germany 43 9.2%
4 Canada 30 6.4%
5 Hong Kong 15 3.2%
6 Netherlands 10 2.1%
7 Russia 8 1.7%
8 Singapore 6 1.3%
9 Peru 6 1.3%
10 Algeria 5 1.1%
11 Viet Nam 3 0.6%
12 United Kingdom 3 0.6%
13 Taiwan 2 0.4%
14 South Africa 1 0.2%
15 Australia 1 0.2%
16 India 1 0.2%
17 Japan 1 0.2%
18 Luxembourg 1 0.2%