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 278 43.4%
2 United States 142 22.2%
3 Netherlands 104 16.2%
4 Germany 55 8.6%
5 Taiwan 10 1.6%
6 Ireland 8 1.2%
7 Canada 8 1.2%
8 Russia 6 0.9%
9 France 5 0.8%
10 Japan 4 0.6%
11 Kenya 3 0.5%
12 Korea, Republic of 3 0.5%
13 Australia 3 0.5%
14 Israel 2 0.3%
15 Hong Kong 2 0.3%
16 Singapore 2 0.3%
17 Switzerland 2 0.3%
18 Romania 1 0.2%
19 Macao 1 0.2%
20 Malaysia 1 0.2%
21 India 1 0.2%