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 110 53.1%
2 United States 44 21.3%
3 Canada 12 5.8%
4 Korea, Republic of 8 3.9%
5 Senegal 7 3.4%
6 Netherlands 6 2.9%
7 Finland 6 2.9%
8 India 3 1.4%
9 Hungary 2 1%
10 France 2 1%
11 Switzerland 2 1%
12 Norway 1 0.5%
13 Germany 1 0.5%
14 Hong Kong 1 0.5%
15 Italy 1 0.5%
16 Japan 1 0.5%