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 480 36%
2 United States 326 24.4%
3 Netherlands 181 13.6%
4 Germany 104 7.8%
5 Russia 58 4.3%
6 France 54 4%
7 Canada 19 1.4%
8 Czech Republic 16 1.2%
9 Sweden 13 1%
10 Hong Kong 10 0.7%
11 Malaysia 8 0.6%
12 Thailand 7 0.5%
13 Singapore 7 0.5%
14 India 6 0.4%
15 Ireland 5 0.4%
16 Ukraine 5 0.4%
17 Viet Nam 4 0.3%
18 Japan 4 0.3%
19 Brazil 4 0.3%
20 Taiwan 3 0.2%
21 United Kingdom 3 0.2%
22 Switzerland 2 0.1%
23 South Africa 2 0.1%
24 Australia 2 0.1%
25 Finland 2 0.1%
26 Ghana 2 0.1%
27 Moldova, Republic of 2 0.1%
28 Italy 2 0.1%
29 Macao 1 0.1%
30 Norway 1 0.1%
31 Portugal 1 0.1%