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 365 49.7%
2 United States 141 19.2%
3 Netherlands 137 18.6%
4 Germany 56 7.6%
5 Canada 9 1.2%
6 France 6 0.8%
7 Hong Kong 5 0.7%
8 Malaysia 4 0.5%
9 Russia 3 0.4%
10 Brazil 3 0.4%
11 India 2 0.3%
12 Serbia 2 0.3%
13 United Kingdom 1 0.1%
14 Korea, Republic of 1 0.1%