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 609 40.7%
2 United States 351 23.4%
3 Netherlands 195 13%
4 France 104 6.9%
5 Germany 95 6.3%
6 Russia 67 4.5%
7 Canada 31 2.1%
8 Czech Republic 14 0.9%
9 Hong Kong 7 0.5%
10 Taiwan 7 0.5%
11 Ukraine 4 0.3%
12 India 3 0.2%
13 Australia 2 0.1%
14 Belgium 2 0.1%
15 Indonesia 1 0.1%
16 Moldova, Republic of 1 0.1%
17 United Arab Emirates 1 0.1%
18 Singapore 1 0.1%
19 Norway 1 0.1%
20 Portugal 1 0.1%