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 72 28.6%
2 United States 59 23.4%
3 Germany 32 12.7%
4 Netherlands 26 10.3%
5 France 7 2.8%
6 Korea, Republic of 7 2.8%
7 Ireland 6 2.4%
8 Hong Kong 4 1.6%
9 Russia 4 1.6%
10 Singapore 3 1.2%
11 United Kingdom 3 1.2%
12 Taiwan 3 1.2%
13 Finland 3 1.2%
14 Canada 3 1.2%
15 Japan 2 0.8%
16 Latvia 2 0.8%
17 Australia 2 0.8%
18 Brazil 2 0.8%
19 Iceland 2 0.8%
20 Sweden 2 0.8%
21 Saudi Arabia 1 0.4%
22 Nigeria 1 0.4%
23 Poland 1 0.4%
24 Romania 1 0.4%
25 Thailand 1 0.4%
26 Iran, Islamic Republic of 1 0.4%
27 Mauritius 1 0.4%
28 Moldova, Republic of 1 0.4%