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 396 49.3%
2 United States 176 21.9%
3 Netherlands 97 12.1%
4 Germany 64 8%
5 Taiwan 19 2.4%
6 Canada 18 2.2%
7 France 7 0.9%
8 Hong Kong 5 0.6%
9 Australia 4 0.5%
10 Ukraine 4 0.5%
11 Norway 2 0.2%
12 Singapore 2 0.2%
13 Brazil 2 0.2%
14 Cambodia 2 0.2%
15 Korea, Republic of 2 0.2%
16 India 1 0.1%
17 Sweden 1 0.1%
18 Russia 1 0.1%