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 528 48.6%
2 United States 201 18.5%
3 Netherlands 156 14.4%
4 Germany 91 8.4%
5 France 42 3.9%
6 Canada 18 1.7%
7 Taiwan 14 1.3%
8 Sweden 10 0.9%
9 Korea, Republic of 6 0.6%
10 Ukraine 3 0.3%
11 Norway 3 0.3%
12 Hong Kong 3 0.3%
13 India 2 0.2%
14 Australia 2 0.2%
15 Brazil 2 0.2%
16 Singapore 2 0.2%
17 Russia 1 0.1%
18 Finland 1 0.1%
19 Japan 1 0.1%