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 427 42.8%
2 United States 245 24.6%
3 Germany 84 8.4%
4 Netherlands 71 7.1%
5 France 47 4.7%
6 Taiwan 33 3.3%
7 Canada 20 2%
8 Hong Kong 15 1.5%
9 Czech Republic 14 1.4%
10 Egypt 11 1.1%
11 Ireland 7 0.7%
12 Korea, Republic of 5 0.5%
13 India 5 0.5%
14 Australia 3 0.3%
15 Brazil 2 0.2%
16 Japan 2 0.2%
17 Romania 2 0.2%
18 Viet Nam 2 0.2%
19 Russia 1 0.1%
20 Singapore 1 0.1%