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 240 28.8%
2 United States 214 25.7%
3 Japan 187 22.4%
4 Germany 61 7.3%
5 Netherlands 45 5.4%
6 Sweden 27 3.2%
7 Korea, Republic of 19 2.3%
8 Hong Kong 9 1.1%
9 Singapore 6 0.7%
10 United Kingdom 6 0.7%
11 Canada 5 0.6%
12 Russia 4 0.5%
13 Australia 3 0.4%
14 Argentina 2 0.2%
15 India 2 0.2%
16 France 1 0.1%
17 Bulgaria 1 0.1%
18 Taiwan 1 0.1%