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 484 41.5%
2 United States 238 20.4%
3 Netherlands 212 18.2%
4 Germany 85 7.3%
5 Taiwan 33 2.8%
6 France 31 2.7%
7 Canada 29 2.5%
8 Sweden 14 1.2%
9 Hong Kong 10 0.9%
10 Singapore 7 0.6%
11 Australia 6 0.5%
12 Russia 4 0.3%
13 United Kingdom 3 0.3%
14 India 3 0.3%
15 Japan 2 0.2%
16 Korea, Republic of 2 0.2%
17 Viet Nam 1 0.1%
18 Philippines 1 0.1%