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 800 67.6%
2 United States 140 11.8%
3 Netherlands 95 8%
4 Germany 55 4.6%
5 Canada 23 1.9%
6 Taiwan 14 1.2%
7 Hong Kong 11 0.9%
8 Singapore 9 0.8%
9 Sweden 7 0.6%
10 France 6 0.5%
11 Japan 4 0.3%
12 Korea, Republic of 4 0.3%
13 United Kingdom 4 0.3%
14 Serbia 3 0.3%
15 Norway 2 0.2%
16 India 2 0.2%
17 Finland 2 0.2%
18 Switzerland 1 0.1%
19 Ukraine 1 0.1%
20 Viet Nam 1 0.1%