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 Finland 407 28.4%
2 China 368 25.7%
3 United States 312 21.8%
4 Canada 146 10.2%
5 Germany 131 9.1%
6 Netherlands 33 2.3%
7 Singapore 8 0.6%
8 Iran, Islamic Republic of 7 0.5%
9 Hong Kong 5 0.3%
10 Malaysia 5 0.3%
11 France 3 0.2%
12 Korea, Republic of 2 0.1%
13 Macao 2 0.1%
14 Switzerland 2 0.1%
15 Taiwan 1 0.1%
16 United Kingdom 1 0.1%