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 United States 82 33.5%
2 China 78 31.8%
3 Netherlands 18 7.3%
4 Sweden 18 7.3%
5 Germany 11 4.5%
6 Thailand 9 3.7%
7 Cote D'ivoire 6 2.4%
8 France 5 2%
9 Russia 5 2%
10 Korea, Republic of 2 0.8%
11 Switzerland 2 0.8%
12 Brazil 2 0.8%
13 Hong Kong 2 0.8%
14 Norway 2 0.8%
15 Italy 1 0.4%
16 Finland 1 0.4%
17 United Kingdom 1 0.4%