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 563 51%
2 United States 174 15.7%
3 Netherlands 152 13.8%
4 France 85 7.7%
5 Germany 58 5.2%
6 Canada 18 1.6%
7 Hong Kong 14 1.3%
8 Korea, Republic of 9 0.8%
9 India 6 0.5%
10 Russia 6 0.5%
11 Norway 5 0.5%
12 Singapore 3 0.3%
13 Taiwan 3 0.3%
14 Trinidad and Tobago 2 0.2%
15 Ukraine 2 0.2%
16 United Kingdom 2 0.2%
17 Luxembourg 2 0.2%
18 Finland 1 0.1%