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 337 44.3%
2 United States 154 20.2%
3 Netherlands 122 16%
4 Germany 78 10.2%
5 Colombia 16 2.1%
6 Canada 15 2%
7 Hong Kong 9 1.2%
8 Korea, Republic of 9 1.2%
9 France 5 0.7%
10 Slovakia 3 0.4%
11 Sweden 2 0.3%
12 Taiwan 2 0.3%
13 India 2 0.3%
14 Japan 1 0.1%
15 Finland 1 0.1%
16 United Kingdom 1 0.1%
17 New Zealand 1 0.1%
18 Romania 1 0.1%
19 Russia 1 0.1%
20 Singapore 1 0.1%