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 88 37%
2 United States 52 21.8%
3 Germany 37 15.5%
4 Netherlands 15 6.3%
5 Russia 9 3.8%
6 India 7 2.9%
7 Hong Kong 5 2.1%
8 Singapore 4 1.7%
9 Brazil 4 1.7%
10 United Kingdom 3 1.3%
11 Belarus 2 0.8%
12 Ghana 2 0.8%
13 Taiwan 2 0.8%
14 Poland 2 0.8%
15 Mauritius 2 0.8%
16 Israel 1 0.4%
17 Czech Republic 1 0.4%
18 Estonia 1 0.4%
19 France 1 0.4%