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 461 47.6%
2 United States 184 19%
3 Netherlands 167 17.2%
4 Germany 57 5.9%
5 France 33 3.4%
6 Canada 22 2.3%
7 Singapore 16 1.7%
8 Sweden 11 1.1%
9 Hong Kong 8 0.8%
10 Russia 6 0.6%
11 United Kingdom 2 0.2%
12 India 1 0.1%
13 Korea, Republic of 1 0.1%