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 452 54.7%
2 United States 152 18.4%
3 Netherlands 113 13.7%
4 Germany 57 6.9%
5 Canada 16 1.9%
6 Sweden 6 0.7%
7 France 5 0.6%
8 United Kingdom 4 0.5%
9 Taiwan 4 0.5%
10 India 4 0.5%
11 Ireland 2 0.2%
12 Hong Kong 2 0.2%
13 Ukraine 2 0.2%
14 Russia 2 0.2%
15 Singapore 1 0.1%
16 Norway 1 0.1%
17 Switzerland 1 0.1%
18 Belize 1 0.1%
19 Estonia 1 0.1%