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 413 53.2%
2 Netherlands 142 18.3%
3 United States 114 14.7%
4 Germany 50 6.4%
5 Canada 19 2.4%
6 France 8 1%
7 Singapore 6 0.8%
8 Japan 4 0.5%
9 Taiwan 3 0.4%
10 Iran, Islamic Republic of 3 0.4%
11 Ireland 2 0.3%
12 Hong Kong 2 0.3%
13 India 2 0.3%
14 United Kingdom 2 0.3%
15 South Africa 2 0.3%
16 Russia 2 0.3%
17 Norway 1 0.1%
18 Albania 1 0.1%