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 553 59.8%
2 United States 125 13.5%
3 Netherlands 115 12.4%
4 Germany 57 6.2%
5 Russia 20 2.2%
6 Canada 11 1.2%
7 Ireland 9 1%
8 Hong Kong 7 0.8%
9 Korea, Republic of 6 0.6%
10 France 5 0.5%
11 Norway 4 0.4%
12 Singapore 3 0.3%
13 South Africa 2 0.2%
14 Taiwan 2 0.2%
15 2 0.2%
16 India 1 0.1%
17 Ukraine 1 0.1%
18 Sweden 1 0.1%