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 520 44.1%
2 United States 267 22.6%
3 Netherlands 197 16.7%
4 Germany 67 5.7%
5 France 40 3.4%
6 Canada 24 2%
7 Hong Kong 13 1.1%
8 Taiwan 11 0.9%
9 Russia 10 0.8%
10 Singapore 10 0.8%
11 Malaysia 5 0.4%
12 Japan 3 0.3%
13 Finland 3 0.3%
14 Macao 2 0.2%
15 New Zealand 2 0.2%
16 Norway 2 0.2%
17 Romania 1 0.1%
18 Iran, Islamic Republic of 1 0.1%
19 Viet Nam 1 0.1%