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 467 48.3%
2 United States 156 16.1%
3 Netherlands 155 16%
4 Germany 60 6.2%
5 France 35 3.6%
6 Canada 25 2.6%
7 Hong Kong 18 1.9%
8 Taiwan 15 1.6%
9 Singapore 7 0.7%
10 Korea, Republic of 7 0.7%
11 India 5 0.5%
12 Russia 4 0.4%
13 Ukraine 3 0.3%
14 Sweden 2 0.2%
15 Ireland 2 0.2%
16 Japan 2 0.2%
17 Lao People's Democratic Republic 1 0.1%
18 Turkey 1 0.1%
19 Norway 1 0.1%