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 Japan 182 44.8%
2 China 72 17.7%
3 United States 72 17.7%
4 Germany 21 5.2%
5 Netherlands 18 4.4%
6 Korea, Republic of 15 3.7%
7 Sweden 12 3%
8 Hong Kong 5 1.2%
9 Australia 3 0.7%
10 India 2 0.5%
11 Bulgaria 1 0.2%
12 Canada 1 0.2%
13 United Kingdom 1 0.2%
14 Russia 1 0.2%