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 188 36.8%
2 United States 183 35.8%
3 Germany 35 6.8%
4 Netherlands 35 6.8%
5 Korea, Republic of 18 3.5%
6 Lithuania 10 2%
7 Sweden 9 1.8%
8 France 6 1.2%
9 Hong Kong 4 0.8%
10 Taiwan 4 0.8%
11 Canada 3 0.6%
12 Kenya 3 0.6%
13 South Africa 2 0.4%
14 Switzerland 2 0.4%
15 Romania 2 0.4%
16 Japan 2 0.4%
17 India 2 0.4%
18 Italy 1 0.2%
19 Russia 1 0.2%
20 Togo 1 0.2%