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 212 60.4%
2 United States 50 14.2%
3 Germany 35 10%
4 Netherlands 14 4%
5 Canada 13 3.7%
6 Japan 5 1.4%
7 Hong Kong 4 1.1%
8 India 4 1.1%
9 Italy 3 0.9%
10 Taiwan 3 0.9%
11 Singapore 2 0.6%
12 Korea, Republic of 2 0.6%
13 Malaysia 2 0.6%
14 Macao 1 0.3%
15 Ukraine 1 0.3%