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 432 46.7%
2 United States 275 29.7%
3 Netherlands 130 14%
4 Germany 39 4.2%
5 Canada 12 1.3%
6 Taiwan 9 1%
7 Russia 5 0.5%
8 Korea, Republic of 5 0.5%
9 France 4 0.4%
10 Hong Kong 3 0.3%
11 Malaysia 2 0.2%
12 Brazil 2 0.2%
13 Tunisia 2 0.2%
14 Turkey 2 0.2%
15 United Kingdom 2 0.2%
16 Singapore 1 0.1%
17 Finland 1 0.1%