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 445 52.2%
2 United States 174 20.4%
3 Germany 85 10%
4 Netherlands 78 9.1%
5 Canada 27 3.2%
6 Ireland 8 0.9%
7 Russia 8 0.9%
8 Korea, Republic of 7 0.8%
9 France 6 0.7%
10 Singapore 4 0.5%
11 Taiwan 3 0.4%
12 Hong Kong 3 0.4%
13 India 2 0.2%
14 Japan 1 0.1%
15 Croatia 1 0.1%
16 Norway 1 0.1%