BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 109 42.1%
2 United States 65 25.1%
3 Germany 24 9.3%
4 Netherlands 13 5%
5 United Kingdom 10 3.9%
6 Russia 7 2.7%
7 Japan 7 2.7%
8 France 6 2.3%
9 Korea, Republic of 4 1.5%
10 India 3 1.2%
11 Italy 2 0.8%
12 Czech Republic 2 0.8%
13 Finland 1 0.4%
14 Canada 1 0.4%
15 Sweden 1 0.4%
16 Taiwan 1 0.4%
17 Ukraine 1 0.4%
18 Philippines 1 0.4%
19 Poland 1 0.4%