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 247 35%
2 United States 236 33.5%
3 Netherlands 77 10.9%
4 Germany 55 7.8%
5 Sweden 17 2.4%
6 Cote D'ivoire 14 2%
7 Korea, Republic of 11 1.6%
8 Russia 11 1.6%
9 Thailand 9 1.3%
10 Hong Kong 5 0.7%
11 France 4 0.6%
12 Japan 4 0.6%
13 Norway 3 0.4%
14 Canada 3 0.4%
15 India 2 0.3%
16 Switzerland 2 0.3%
17 United Kingdom 2 0.3%
18 United Arab Emirates 1 0.1%
19 Italy 1 0.1%
20 Finland 1 0.1%