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 673 65.3%
2 United States 143 13.9%
3 Netherlands 69 6.7%
4 Germany 56 5.4%
5 Russia 34 3.3%
6 Canada 21 2%
7 United Kingdom 7 0.7%
8 France 6 0.6%
9 Australia 4 0.4%
10 India 4 0.4%
11 Norway 3 0.3%
12 Hong Kong 3 0.3%
13 Ghana 1 0.1%
14 Brazil 1 0.1%
15 Portugal 1 0.1%
16 Japan 1 0.1%
17 Singapore 1 0.1%
18 Sweden 1 0.1%
19 Taiwan 1 0.1%
20 United Arab Emirates 1 0.1%