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 185 51.2%
2 United States 70 19.4%
3 Germany 39 10.8%
4 Italy 14 3.9%
5 France 8 2.2%
6 Singapore 8 2.2%
7 Canada 6 1.7%
8 Japan 5 1.4%
9 Czech Republic 4 1.1%
10 Taiwan 4 1.1%
11 Ireland 4 1.1%
12 Russia 2 0.6%
13 Hong Kong 2 0.6%
14 Ukraine 2 0.6%
15 United Kingdom 2 0.6%
16 Spain 2 0.6%
17 Macao 2 0.6%
18 Malaysia 1 0.3%
19 Niger 1 0.3%