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 119 39.4%
2 China 51 16.9%
3 Germany 37 12.3%
4 Russia 13 4.3%
5 Netherlands 11 3.6%
6 Korea, Republic of 10 3.3%
7 India 10 3.3%
8 Greece 6 2%
9 Hong Kong 6 2%
10 Sweden 5 1.7%
11 Singapore 4 1.3%
12 Poland 4 1.3%
13 Iran, Islamic Republic of 4 1.3%
14 Israel 3 1%
15 Moldova, Republic of 3 1%
16 United Kingdom 3 1%
17 Canada 2 0.7%
18 Portugal 2 0.7%
19 Japan 2 0.7%
20 Czech Republic 2 0.7%
21 Finland 2 0.7%
22 France 1 0.3%
23 Mauritius 1 0.3%
24 Ukraine 1 0.3%