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 United States 85 35%
2 Germany 39 16%
3 China 33 13.6%
4 Netherlands 17 7%
5 India 11 4.5%
6 United Kingdom 10 4.1%
7 Korea, Republic of 6 2.5%
8 Japan 3 1.2%
9 Russia 3 1.2%
10 Sudan 3 1.2%
11 Hong Kong 3 1.2%
12 Canada 3 1.2%
13 France 3 1.2%
14 Iceland 2 0.8%
15 Iraq 2 0.8%
16 Singapore 2 0.8%
17 South Africa 2 0.8%
18 Romania 2 0.8%
19 Yemen 1 0.4%
20 Sweden 1 0.4%
21 Switzerland 1 0.4%
22 Tanzania, United Republic of 1 0.4%
23 Thailand 1 0.4%
24 Israel 1 0.4%
25 Indonesia 1 0.4%
26 Iran, Islamic Republic of 1 0.4%
27 Nigeria 1 0.4%
28 Palestine, State of 1 0.4%
29 Puerto Rico 1 0.4%
30 Colombia 1 0.4%
31 Bangladesh 1 0.4%
32 Brazil 1 0.4%