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 368 44.3%
2 United States 210 25.3%
3 Netherlands 142 17.1%
4 Germany 51 6.1%
5 Russia 17 2%
6 Canada 14 1.7%
7 France 10 1.2%
8 Kenya 3 0.4%
9 Korea, Republic of 2 0.2%
10 Malaysia 2 0.2%
11 India 2 0.2%
12 Japan 2 0.2%
13 Singapore 2 0.2%
14 South Africa 2 0.2%
15 Taiwan 1 0.1%
16 Turkey 1 0.1%
17 United Kingdom 1 0.1%
18 Estonia 1 0.1%