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 457 50.4%
2 United States 155 17.1%
3 Netherlands 102 11.2%
4 Germany 86 9.5%
5 Canada 21 2.3%
6 Russia 19 2.1%
7 Taiwan 12 1.3%
8 Korea, Republic of 9 1%
9 Hong Kong 8 0.9%
10 Ireland 7 0.8%
11 France 6 0.7%
12 Singapore 6 0.7%
13 United Kingdom 5 0.6%
14 India 4 0.4%
15 Israel 2 0.2%
16 Japan 2 0.2%
17 Australia 2 0.2%
18 Brazil 1 0.1%
19 Macao 1 0.1%
20 Norway 1 0.1%
21 Viet Nam 1 0.1%