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 165 45.2%
2 United States 105 28.8%
3 Germany 32 8.8%
4 Sweden 13 3.6%
5 Canada 12 3.3%
6 Netherlands 6 1.6%
7 Russia 5 1.4%
8 Hong Kong 5 1.4%
9 Singapore 3 0.8%
10 Poland 3 0.8%
11 Switzerland 2 0.5%
12 Ukraine 2 0.5%
13 Australia 2 0.5%
14 Uzbekistan 2 0.5%
15 Azerbaijan 1 0.3%
16 Brazil 1 0.3%
17 Chile 1 0.3%
18 Indonesia 1 0.3%
19 Korea, Republic of 1 0.3%
20 Latvia 1 0.3%
21 Malaysia 1 0.3%
22 United Kingdom 1 0.3%