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 44.9%
2 China 59 22.3%
3 Sweden 17 6.4%
4 Germany 12 4.5%
5 Canada 11 4.2%
6 Netherlands 8 3%
7 Russia 7 2.6%
8 Italy 7 2.6%
9 Australia 6 2.3%
10 France 5 1.9%
11 Korea, Republic of 2 0.8%
12 Thailand 2 0.8%
13 Chile 2 0.8%
14 Hong Kong 2 0.8%
15 India 2 0.8%
16 Ireland 2 0.8%
17 Brazil 1 0.4%
18 Ukraine 1 0.4%