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 466 41.8%
2 United States 222 19.9%
3 Netherlands 201 18%
4 Germany 90 8.1%
5 France 81 7.3%
6 Canada 21 1.9%
7 Sweden 12 1.1%
8 Singapore 4 0.4%
9 Finland 4 0.4%
10 Hong Kong 4 0.4%
11 Ireland 3 0.3%
12 Korea, Republic of 2 0.2%
13 India 2 0.2%
14 Norway 2 0.2%
15 Poland 1 0.1%
16 Russia 1 0.1%