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 137 50%
2 China 77 28.1%
3 Netherlands 20 7.3%
4 Germany 9 3.3%
5 South Africa 8 2.9%
6 Malaysia 4 1.5%
7 Hong Kong 4 1.5%
8 Taiwan 3 1.1%
9 Russia 2 0.7%
10 Singapore 2 0.7%
11 Japan 2 0.7%
12 France 2 0.7%
13 Australia 1 0.4%
14 Canada 1 0.4%
15 Philippines 1 0.4%
16 Ukraine 1 0.4%