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 291 44.6%
2 China 189 29%
3 Germany 36 5.5%
4 Netherlands 36 5.5%
5 Sweden 27 4.1%
6 Korea, Republic of 17 2.6%
7 South Africa 9 1.4%
8 Lithuania 7 1.1%
9 France 5 0.8%
10 Hong Kong 5 0.8%
11 Norway 4 0.6%
12 Canada 3 0.5%
13 Kenya 3 0.5%
14 Taiwan 3 0.5%
15 Singapore 2 0.3%
16 New Zealand 2 0.3%
17 India 2 0.3%
18 Ireland 2 0.3%
19 Israel 2 0.3%
20 Ghana 2 0.3%
21 Peru 1 0.2%
22 Poland 1 0.2%
23 Russia 1 0.2%
24 United Kingdom 1 0.2%
25 Switzerland 1 0.2%