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 317 47.4%
2 United States 155 23.2%
3 Netherlands 65 9.7%
4 Germany 58 8.7%
5 Korea, Republic of 13 1.9%
6 Canada 12 1.8%
7 Cote D'ivoire 8 1.2%
8 United Kingdom 7 1%
9 France 6 0.9%
10 Russia 5 0.7%
11 Sweden 4 0.6%
12 Taiwan 4 0.6%
13 Japan 4 0.6%
14 Hong Kong 3 0.4%
15 Denmark 2 0.3%
16 Philippines 2 0.3%
17 Singapore 1 0.1%
18 Australia 1 0.1%
19 Brazil 1 0.1%
20 India 1 0.1%