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 414 51%
2 United States 165 20.3%
3 Netherlands 99 12.2%
4 Germany 52 6.4%
5 Canada 15 1.8%
6 Taiwan 13 1.6%
7 Sweden 8 1%
8 France 7 0.9%
9 Hong Kong 7 0.9%
10 Macao 5 0.6%
11 Japan 4 0.5%
12 United Kingdom 3 0.4%
13 Ukraine 2 0.2%
14 India 2 0.2%
15 Belgium 2 0.2%
16 Poland 2 0.2%
17 Russia 2 0.2%
18 Singapore 2 0.2%
19 Spain 2 0.2%
20 Serbia 1 0.1%
21 Romania 1 0.1%
22 Mexico 1 0.1%
23 Moldova, Republic of 1 0.1%
24 Korea, Republic of 1 0.1%
25 Luxembourg 1 0.1%