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 488 48.8%
2 United States 189 18.9%
3 Netherlands 132 13.2%
4 Germany 74 7.4%
5 France 30 3%
6 Canada 17 1.7%
7 Hong Kong 9 0.9%
8 Korea, Republic of 9 0.9%
9 Taiwan 9 0.9%
10 Japan 6 0.6%
11 United Kingdom 6 0.6%
12 Denmark 5 0.5%
13 India 4 0.4%
14 Iran, Islamic Republic of 4 0.4%
15 Sweden 4 0.4%
16 Norway 3 0.3%
17 Ukraine 3 0.3%
18 Russia 2 0.2%
19 Singapore 2 0.2%
20 Switzerland 2 0.2%
21 Macao 1 0.1%