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 334 48.8%
2 United States 142 20.7%
3 Netherlands 96 14%
4 Germany 60 8.8%
5 Sweden 15 2.2%
6 Canada 11 1.6%
7 Russia 4 0.6%
8 France 4 0.6%
9 Ireland 4 0.6%
10 Japan 3 0.4%
11 India 3 0.4%
12 United Kingdom 2 0.3%
13 Korea, Republic of 2 0.3%
14 Luxembourg 2 0.3%
15 Moldova, Republic of 1 0.1%
16 Hong Kong 1 0.1%
17 Singapore 1 0.1%