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 443 51.5%
2 United States 221 25.7%
3 Netherlands 94 10.9%
4 Germany 44 5.1%
5 Taiwan 15 1.7%
6 Canada 12 1.4%
7 United Kingdom 6 0.7%
8 Hong Kong 6 0.7%
9 France 6 0.7%
10 India 5 0.6%
11 Russia 3 0.3%
12 Singapore 3 0.3%
13 Japan 1 0.1%
14 Mauritius 1 0.1%
15 Thailand 1 0.1%