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 545 56.4%
2 United States 151 15.6%
3 Netherlands 95 9.8%
4 Germany 51 5.3%
5 Russia 41 4.2%
6 Canada 18 1.9%
7 Korea, Republic of 18 1.9%
8 France 7 0.7%
9 Hong Kong 6 0.6%
10 Iran, Islamic Republic of 5 0.5%
11 Malaysia 5 0.5%
12 India 4 0.4%
13 Australia 3 0.3%
14 New Zealand 3 0.3%
15 Romania 2 0.2%
16 Peru 2 0.2%
17 Japan 2 0.2%
18 Taiwan 2 0.2%
19 Turkey 2 0.2%
20 United Kingdom 1 0.1%
21 Singapore 1 0.1%
22 Finland 1 0.1%
23 Portugal 1 0.1%
24 Norway 1 0.1%