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 776 63.3%
2 United States 180 14.7%
3 Netherlands 152 12.4%
4 Germany 47 3.8%
5 Canada 18 1.5%
6 Russia 17 1.4%
7 Hong Kong 9 0.7%
8 France 5 0.4%
9 Japan 4 0.3%
10 Norway 3 0.2%
11 India 3 0.2%
12 2 0.2%
13 Australia 2 0.2%
14 Korea, Republic of 2 0.2%
15 Malaysia 2 0.2%
16 Singapore 2 0.2%
17 Taiwan 1 0.1%
18 Italy 1 0.1%