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 628 42.8%
2 United States 260 17.7%
3 Netherlands 256 17.5%
4 France 100 6.8%
5 Germany 94 6.4%
6 Russia 58 4%
7 Canada 22 1.5%
8 Czech Republic 15 1%
9 Taiwan 9 0.6%
10 Ukraine 4 0.3%
11 Singapore 4 0.3%
12 3 0.2%
13 India 3 0.2%
14 Australia 2 0.1%
15 Mexico 2 0.1%
16 Portugal 2 0.1%
17 Viet Nam 2 0.1%
18 United Arab Emirates 1 0.1%
19 Ireland 1 0.1%