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 106 42.2%
2 United States 58 23.1%
3 Netherlands 27 10.8%
4 Germany 15 6%
5 Canada 9 3.6%
6 France 8 3.2%
7 Korea, Republic of 7 2.8%
8 Taiwan 4 1.6%
9 Russia 4 1.6%
10 United Kingdom 3 1.2%
11 Hong Kong 3 1.2%
12 Thailand 2 0.8%
13 Singapore 1 0.4%
14 Sweden 1 0.4%
15 India 1 0.4%
16 Japan 1 0.4%
17 Denmark 1 0.4%