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 United States 82 47.1%
2 China 27 15.5%
3 Germany 16 9.2%
4 Netherlands 13 7.5%
5 Canada 8 4.6%
6 Peru 6 3.4%
7 United Kingdom 6 3.4%
8 France 5 2.9%
9 Belgium 3 1.7%
10 Russia 3 1.7%
11 India 2 1.1%
12 Indonesia 1 0.6%
13 Korea, Republic of 1 0.6%
14 Hong Kong 1 0.6%