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 337 46.9%
2 United States 124 17.3%
3 Netherlands 106 14.8%
4 Germany 70 9.7%
5 Hong Kong 17 2.4%
6 Canada 14 1.9%
7 Sweden 13 1.8%
8 France 8 1.1%
9 Russia 7 1%
10 Singapore 5 0.7%
11 Ukraine 4 0.6%
12 United Kingdom 3 0.4%
13 Malaysia 2 0.3%
14 India 2 0.3%
15 Indonesia 1 0.1%
16 Japan 1 0.1%
17 Korea, Republic of 1 0.1%
18 Switzerland 1 0.1%
19 Slovakia 1 0.1%
20 Nigeria 1 0.1%