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 669 51.7%
2 United States 364 28.2%
3 Netherlands 104 8%
4 Germany 63 4.9%
5 France 29 2.2%
6 Canada 19 1.5%
7 India 12 0.9%
8 Hong Kong 9 0.7%
9 Korea, Republic of 5 0.4%
10 Norway 4 0.3%
11 Singapore 2 0.2%
12 Spain 2 0.2%
13 Thailand 2 0.2%
14 Indonesia 2 0.2%
15 Italy 2 0.2%
16 Greece 2 0.2%
17 Australia 1 0.1%
18 Mauritius 1 0.1%
19 Switzerland 1 0.1%