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 347 48.6%
2 United States 181 25.4%
3 Netherlands 45 6.3%
4 Germany 38 5.3%
5 Sweden 18 2.5%
6 France 17 2.4%
7 Korea, Republic of 13 1.8%
8 Russia 12 1.7%
9 Taiwan 11 1.5%
10 Cote D'ivoire 9 1.3%
11 Iran, Islamic Republic of 5 0.7%
12 India 3 0.4%
13 Moldova, Republic of 3 0.4%
14 Philippines 2 0.3%
15 Portugal 2 0.3%
16 Hong Kong 2 0.3%
17 United Arab Emirates 2 0.3%
18 United Kingdom 1 0.1%
19 Italy 1 0.1%
20 Mauritius 1 0.1%
21 Norway 1 0.1%