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 537 52%
2 United States 234 22.7%
3 Netherlands 84 8.1%
4 Germany 67 6.5%
5 Canada 30 2.9%
6 Hong Kong 13 1.3%
7 Russia 11 1.1%
8 Korea, Republic of 8 0.8%
9 India 6 0.6%
10 Ireland 6 0.6%
11 Taiwan 6 0.6%
12 France 5 0.5%
13 Sweden 4 0.4%
14 Ukraine 3 0.3%
15 Singapore 3 0.3%
16 Malaysia 2 0.2%
17 Norway 2 0.2%
18 Australia 2 0.2%
19 United Kingdom 2 0.2%
20 Switzerland 2 0.2%
21 Turkey 2 0.2%
22 Japan 1 0.1%
23 Poland 1 0.1%
24 Portugal 1 0.1%