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 61 28.2%
2 United States 50 23.1%
3 Canada 39 18.1%
4 Netherlands 18 8.3%
5 Germany 14 6.5%
6 Spain 11 5.1%
7 France 8 3.7%
8 Russia 4 1.9%
9 Hong Kong 2 0.9%
10 India 2 0.9%
11 Italy 2 0.9%
12 Ukraine 2 0.9%
13 Sweden 1 0.5%
14 Luxembourg 1 0.5%
15 Slovenia 1 0.5%