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 189 36.7%
2 United States 134 26%
3 Germany 55 10.7%
4 Netherlands 42 8.2%
5 Hong Kong 26 5%
6 Sweden 26 5%
7 Korea, Republic of 21 4.1%
8 Cote D'ivoire 9 1.7%
9 Canada 3 0.6%
10 Romania 2 0.4%
11 Russia 2 0.4%
12 Singapore 2 0.4%
13 Taiwan 1 0.2%
14 Peru 1 0.2%
15 Cyprus 1 0.2%
16 India 1 0.2%