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 245 33.1%
2 China 233 31.4%
3 Netherlands 82 11.1%
4 Germany 73 9.9%
5 France 21 2.8%
6 Canada 14 1.9%
7 Russia 13 1.8%
8 Turkey 5 0.7%
9 United Kingdom 5 0.7%
10 Hong Kong 5 0.7%
11 Korea, Republic of 4 0.5%
12 Mauritius 4 0.5%
13 Bangladesh 3 0.4%
14 Singapore 3 0.4%
15 Sweden 3 0.4%
16 Philippines 3 0.4%
17 Poland 2 0.3%
18 Portugal 2 0.3%
19 Nigeria 2 0.3%
20 Togo 2 0.3%
21 Ukraine 2 0.3%
22 Viet Nam 2 0.3%
23 Brazil 2 0.3%
24 Egypt 2 0.3%
25 Moldova, Republic of 2 0.3%
26 Japan 2 0.3%
27 India 1 0.1%
28 Iran, Islamic Republic of 1 0.1%
29 Estonia 1 0.1%
30 Finland 1 0.1%
31 Austria 1 0.1%