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 United States 119 38%
2 China 101 32.3%
3 Sweden 22 7%
4 Korea, Republic of 14 4.5%
5 Netherlands 13 4.2%
6 South Africa 9 2.9%
7 Lithuania 7 2.2%
8 Germany 6 1.9%
9 France 4 1.3%
10 Norway 4 1.3%
11 Taiwan 3 1%
12 New Zealand 2 0.6%
13 India 2 0.6%
14 Ireland 2 0.6%
15 Israel 2 0.6%
16 Peru 1 0.3%
17 Russia 1 0.3%
18 Switzerland 1 0.3%