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 United States 87 35.2%
2 China 47 19%
3 Germany 39 15.8%
4 Russia 24 9.7%
5 Netherlands 23 9.3%
6 Hong Kong 4 1.6%
7 Singapore 4 1.6%
8 Sweden 4 1.6%
9 United Kingdom 3 1.2%
10 India 3 1.2%
11 Poland 2 0.8%
12 Estonia 2 0.8%
13 Spain 2 0.8%
14 Belarus 2 0.8%
15 Mauritius 1 0.4%