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 339 44.6%
2 United States 197 25.9%
3 Netherlands 122 16.1%
4 Germany 52 6.8%
5 Canada 13 1.7%
6 Taiwan 5 0.7%
7 France 4 0.5%
8 Hong Kong 4 0.5%
9 Korea, Republic of 3 0.4%
10 United Kingdom 3 0.4%
11 Norway 3 0.4%
12 Russia 3 0.4%
13 Senegal 2 0.3%
14 Sweden 2 0.3%
15 Mauritius 2 0.3%
16 India 2 0.3%
17 1 0.1%
18 Czech Republic 1 0.1%
19 Finland 1 0.1%
20 Singapore 1 0.1%