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 43 35%
2 China 25 20.3%
3 Germany 13 10.6%
4 Singapore 11 8.9%
5 Japan 6 4.9%
6 India 5 4.1%
7 Canada 4 3.3%
8 France 4 3.3%
9 Hong Kong 3 2.4%
10 United Kingdom 3 2.4%
11 Hungary 2 1.6%
12 Netherlands 1 0.8%
13 Norway 1 0.8%
14 Czech Republic 1 0.8%
15 Finland 1 0.8%