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 97 38.5%
2 United States 52 20.6%
3 Germany 31 12.3%
4 Netherlands 19 7.5%
5 Russia 13 5.2%
6 Singapore 8 3.2%
7 Hong Kong 6 2.4%
8 France 5 2%
9 United Kingdom 4 1.6%
10 Ukraine 3 1.2%
11 Brazil 3 1.2%
12 Canada 2 0.8%
13 India 2 0.8%
14 South Africa 2 0.8%
15 Poland 2 0.8%
16 Slovakia 1 0.4%
17 Ireland 1 0.4%
18 Korea, Republic of 1 0.4%