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 170 46.3%
2 United States 89 24.3%
3 Germany 46 12.5%
4 Canada 15 4.1%
5 Taiwan 10 2.7%
6 Korea, Republic of 6 1.6%
7 Hong Kong 5 1.4%
8 Malaysia 4 1.1%
9 Singapore 4 1.1%
10 Ethiopia 3 0.8%
11 Finland 2 0.5%
12 France 2 0.5%
13 Ireland 2 0.5%
14 Japan 2 0.5%
15 Australia 2 0.5%
16 Brazil 2 0.5%
17 Netherlands 1 0.3%
18 Turkey 1 0.3%
19 Ukraine 1 0.3%