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 588 52.4%
2 United States 209 18.6%
3 Netherlands 106 9.4%
4 Germany 73 6.5%
5 France 40 3.6%
6 Russia 28 2.5%
7 Canada 26 2.3%
8 Korea, Republic of 17 1.5%
9 Ireland 10 0.9%
10 Hong Kong 4 0.4%
11 India 4 0.4%
12 Australia 3 0.3%
13 Brazil 3 0.3%
14 Switzerland 2 0.2%
15 Taiwan 2 0.2%
16 Ukraine 2 0.2%
17 Romania 2 0.2%
18 Singapore 1 0.1%
19 Norway 1 0.1%
20 Italy 1 0.1%