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 418 42.6%
2 United States 241 24.5%
3 Netherlands 152 15.5%
4 Germany 66 6.7%
5 Canada 26 2.6%
6 Sweden 18 1.8%
7 Singapore 13 1.3%
8 Hong Kong 10 1%
9 India 5 0.5%
10 France 5 0.5%
11 Finland 4 0.4%
12 Ukraine 4 0.4%
13 Russia 3 0.3%
14 Ireland 3 0.3%
15 Japan 3 0.3%
16 Australia 3 0.3%
17 Viet Nam 2 0.2%
18 1 0.1%
19 Denmark 1 0.1%
20 Korea, Republic of 1 0.1%
21 Taiwan 1 0.1%
22 Turkey 1 0.1%
23 Norway 1 0.1%