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 175 38.8%
2 China 136 30.2%
3 Germany 36 8%
4 Netherlands 20 4.4%
5 Korea, Republic of 19 4.2%
6 South Africa 9 2%
7 Lithuania 8 1.8%
8 Hong Kong 8 1.8%
9 Australia 5 1.1%
10 Sweden 5 1.1%
11 United Kingdom 5 1.1%
12 France 4 0.9%
13 Norway 3 0.7%
14 India 3 0.7%
15 Ireland 2 0.4%
16 Austria 2 0.4%
17 Brazil 2 0.4%
18 Canada 2 0.4%
19 Switzerland 2 0.4%
20 Taiwan 2 0.4%
21 Togo 2 0.4%
22 Denmark 1 0.2%