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 460 54.8%
2 Netherlands 164 19.5%
3 United States 129 15.4%
4 Germany 54 6.4%
5 Canada 10 1.2%
6 France 8 1%
7 Korea, Republic of 5 0.6%
8 India 3 0.4%
9 Russia 2 0.2%
10 Hong Kong 2 0.2%
11 Sweden 2 0.2%
12 Singapore 1 0.1%