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 230 34.3%
2 United States 219 32.7%
3 Netherlands 69 10.3%
4 Germany 48 7.2%
5 Korea, Republic of 17 2.5%
6 Sweden 17 2.5%
7 Cote D'ivoire 16 2.4%
8 Russia 12 1.8%
9 Thailand 8 1.2%
10 Hong Kong 6 0.9%
11 France 5 0.7%
12 Japan 4 0.6%
13 Canada 3 0.4%
14 India 3 0.4%
15 Finland 2 0.3%
16 Norway 2 0.3%
17 Romania 2 0.3%
18 Switzerland 2 0.3%
19 Ukraine 2 0.3%
20 Poland 1 0.1%
21 Ireland 1 0.1%
22 Italy 1 0.1%