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 686 40%
2 United States 375 21.9%
3 Netherlands 238 13.9%
4 Germany 197 11.5%
5 Canada 48 2.8%
6 France 48 2.8%
7 Russia 24 1.4%
8 Taiwan 14 0.8%
9 Japan 13 0.8%
10 India 8 0.5%
11 Ecuador 8 0.5%
12 United Kingdom 8 0.5%
13 Hong Kong 7 0.4%
14 Iran, Islamic Republic of 4 0.2%
15 Portugal 4 0.2%
16 Sweden 4 0.2%
17 Singapore 4 0.2%
18 Norway 3 0.2%
19 Ukraine 3 0.2%
20 Korea, Republic of 3 0.2%
21 Finland 3 0.2%
22 Australia 3 0.2%
23 Belgium 2 0.1%
24 Colombia 2 0.1%
25 Indonesia 2 0.1%
26 Turkey 2 0.1%
27 Poland 1 0.1%
28 Spain 1 0.1%
29 Ghana 1 0.1%