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 83 40.1%
2 United States 60 29%
3 Sweden 18 8.7%
4 Netherlands 10 4.8%
5 Korea, Republic of 8 3.9%
6 France 8 3.9%
7 India 4 1.9%
8 Russia 4 1.9%
9 Moldova, Republic of 2 1%
10 Germany 2 1%
11 Brazil 2 1%
12 Azerbaijan 1 0.5%
13 Finland 1 0.5%
14 Hong Kong 1 0.5%
15 Ireland 1 0.5%
16 Switzerland 1 0.5%
17 Ukraine 1 0.5%