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 519 56.5%
2 United States 154 16.8%
3 Netherlands 108 11.8%
4 Germany 56 6.1%
5 Canada 16 1.7%
6 Russia 11 1.2%
7 Qatar 9 1%
8 France 6 0.7%
9 Spain 6 0.7%
10 Brazil 5 0.5%
11 India 4 0.4%
12 Hong Kong 3 0.3%
13 Finland 3 0.3%
14 Moldova, Republic of 3 0.3%
15 Ukraine 3 0.3%
16 United Kingdom 2 0.2%
17 Taiwan 2 0.2%
18 Philippines 2 0.2%
19 Singapore 1 0.1%
20 Norway 1 0.1%
21 Luxembourg 1 0.1%
22 Mexico 1 0.1%
23 Turkey 1 0.1%
24 Sweden 1 0.1%