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 222 54.5%
2 United States 78 19.2%
3 Germany 44 10.8%
4 Netherlands 33 8.1%
5 Canada 9 2.2%
6 Hong Kong 6 1.5%
7 Russia 3 0.7%
8 Singapore 2 0.5%
9 India 2 0.5%
10 Korea, Republic of 2 0.5%
11 2 0.5%
12 North Macedonia 2 0.5%
13 Mauritius 1 0.2%
14 Moldova, Republic of 1 0.2%