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 342 47.6%
2 United States 159 22.1%
3 Netherlands 101 14.1%
4 Germany 53 7.4%
5 Canada 21 2.9%
6 Malaysia 8 1.1%
7 France 7 1%
8 Taiwan 5 0.7%
9 Korea, Republic of 4 0.6%
10 Singapore 3 0.4%
11 India 3 0.4%
12 United Kingdom 3 0.4%
13 Hong Kong 2 0.3%
14 2 0.3%
15 Ukraine 2 0.3%
16 Norway 1 0.1%
17 Finland 1 0.1%
18 Ireland 1 0.1%