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 419 45.4%
2 United States 214 23.2%
3 Netherlands 142 15.4%
4 Germany 65 7%
5 Canada 14 1.5%
6 Hong Kong 12 1.3%
7 France 8 0.9%
8 Russia 8 0.9%
9 Norway 6 0.7%
10 Philippines 4 0.4%
11 India 4 0.4%
12 United Kingdom 4 0.4%
13 Taiwan 4 0.4%
14 Ukraine 3 0.3%
15 Singapore 3 0.3%
16 Sweden 3 0.3%
17 Romania 2 0.2%
18 Serbia 2 0.2%
19 Malaysia 2 0.2%
20 Moldova, Republic of 1 0.1%
21 Japan 1 0.1%
22 Chile 1 0.1%