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 402 44.5%
2 United States 248 27.4%
3 Netherlands 151 16.7%
4 Germany 50 5.5%
5 Canada 12 1.3%
6 Russia 6 0.7%
7 Ireland 4 0.4%
8 Hong Kong 4 0.4%
9 France 4 0.4%
10 Japan 3 0.3%
11 Norway 3 0.3%
12 Korea, Republic of 2 0.2%
13 Macao 2 0.2%
14 Malaysia 2 0.2%
15 Albania 2 0.2%
16 Brazil 2 0.2%
17 Sweden 2 0.2%
18 Ukraine 1 0.1%
19 United Kingdom 1 0.1%
20 India 1 0.1%
21 Indonesia 1 0.1%
22 Singapore 1 0.1%