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 446 45.3%
2 Netherlands 186 18.9%
3 United States 183 18.6%
4 Germany 78 7.9%
5 France 38 3.9%
6 Canada 14 1.4%
7 Sweden 10 1%
8 Singapore 6 0.6%
9 4 0.4%
10 Ukraine 3 0.3%
11 Norway 3 0.3%
12 Russia 2 0.2%
13 New Zealand 2 0.2%
14 Finland 2 0.2%
15 India 2 0.2%
16 Japan 2 0.2%
17 Korea, Republic of 2 0.2%
18 United Kingdom 1 0.1%