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 105 39.5%
2 United States 56 21.1%
3 Germany 31 11.7%
4 Netherlands 23 8.6%
5 Russia 14 5.3%
6 Hong Kong 8 3%
7 Singapore 6 2.3%
8 Spain 4 1.5%
9 United Kingdom 3 1.1%
10 Japan 3 1.1%
11 Korea, Republic of 2 0.8%
12 Egypt 2 0.8%
13 Finland 2 0.8%
14 Israel 2 0.8%
15 Brazil 2 0.8%
16 France 1 0.4%
17 Mauritius 1 0.4%
18 Mexico 1 0.4%