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 116 39.1%
2 China 84 28.3%
3 Netherlands 18 6.1%
4 Korea, Republic of 12 4%
5 Lithuania 11 3.7%
6 Germany 8 2.7%
7 South Africa 8 2.7%
8 Sweden 8 2.7%
9 France 7 2.4%
10 Taiwan 6 2%
11 Togo 3 1%
12 Russia 3 1%
13 Norway 2 0.7%
14 Switzerland 2 0.7%
15 India 2 0.7%
16 Brazil 2 0.7%
17 Canada 2 0.7%
18 Finland 1 0.3%
19 United Kingdom 1 0.3%
20 Viet Nam 1 0.3%