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 361 43.7%
2 Netherlands 165 20%
3 United States 163 19.7%
4 Germany 75 9.1%
5 Canada 16 1.9%
6 Sweden 12 1.5%
7 Japan 7 0.8%
8 France 5 0.6%
9 India 4 0.5%
10 Luxembourg 4 0.5%
11 Taiwan 3 0.4%
12 Serbia 2 0.2%
13 Singapore 2 0.2%
14 Belgium 2 0.2%
15 Korea, Republic of 2 0.2%
16 Hong Kong 1 0.1%
17 Ukraine 1 0.1%
18 Russia 1 0.1%