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 92 37.4%
2 United States 57 23.2%
3 Netherlands 21 8.5%
4 Germany 17 6.9%
5 France 11 4.5%
6 India 9 3.7%
7 Belarus 9 3.7%
8 Korea, Republic of 6 2.4%
9 Sweden 6 2.4%
10 Cote D'ivoire 5 2%
11 Ireland 4 1.6%
12 Taiwan 4 1.6%
13 Trinidad and Tobago 1 0.4%
14 Ukraine 1 0.4%
15 Norway 1 0.4%
16 Japan 1 0.4%
17 Canada 1 0.4%