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 364 50.6%
2 United States 138 19.2%
3 Netherlands 108 15%
4 Germany 47 6.5%
5 Canada 15 2.1%
6 France 8 1.1%
7 Taiwan 7 1%
8 Russia 7 1%
9 Hong Kong 5 0.7%
10 India 3 0.4%
11 Brazil 3 0.4%
12 Singapore 3 0.4%
13 United Kingdom 3 0.4%
14 South Africa 2 0.3%
15 Australia 2 0.3%
16 Austria 2 0.3%
17 Malaysia 2 0.3%
18 Turkey 1 0.1%