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 United States 372 44.5%
2 China 283 33.9%
3 Germany 38 4.5%
4 Canada 37 4.4%
5 Netherlands 30 3.6%
6 Hong Kong 11 1.3%
7 Taiwan 11 1.3%
8 Japan 10 1.2%
9 Belgium 7 0.8%
10 Sweden 5 0.6%
11 Singapore 4 0.5%
12 France 4 0.5%
13 Malaysia 4 0.5%
14 Russia 3 0.4%
15 United Kingdom 2 0.2%
16 Romania 2 0.2%
17 India 2 0.2%
18 Italy 2 0.2%
19 Algeria 2 0.2%
20 Australia 2 0.2%
21 Guatemala 1 0.1%
22 Macao 1 0.1%
23 Mexico 1 0.1%
24 Moldova, Republic of 1 0.1%
25 South Africa 1 0.1%