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 60 26.5%
2 United States 50 22.1%
3 Germany 40 17.7%
4 Netherlands 18 8%
5 Russia 11 4.9%
6 Ireland 7 3.1%
7 Hong Kong 5 2.2%
8 India 5 2.2%
9 Canada 4 1.8%
10 Taiwan 4 1.8%
11 Chile 3 1.3%
12 Sweden 3 1.3%
13 Italy 2 0.9%
14 Mauritius 2 0.9%
15 Iran, Islamic Republic of 2 0.9%
16 Turkey 2 0.9%
17 Ukraine 2 0.9%
18 Singapore 2 0.9%
19 Slovakia 2 0.9%
20 Saudi Arabia 1 0.4%
21 Serbia 1 0.4%