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 172 50.6%
2 United States 44 12.9%
3 Canada 38 11.2%
4 Germany 30 8.8%
5 Netherlands 28 8.2%
6 Sweden 12 3.5%
7 Japan 4 1.2%
8 Hong Kong 3 0.9%
9 Luxembourg 2 0.6%
10 Switzerland 2 0.6%
11 Singapore 2 0.6%
12 Nigeria 1 0.3%
13 Brazil 1 0.3%
14 France 1 0.3%