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 382 48.3%
2 Netherlands 151 19.1%
3 United States 118 14.9%
4 Germany 69 8.7%
5 Canada 26 3.3%
6 Russia 9 1.1%
7 France 8 1%
8 United Kingdom 4 0.5%
9 Norway 4 0.5%
10 Korea, Republic of 3 0.4%
11 Taiwan 3 0.4%
12 India 3 0.4%
13 Brazil 2 0.3%
14 Ukraine 2 0.3%
15 Latvia 2 0.3%
16 Luxembourg 2 0.3%
17 Estonia 1 0.1%
18 Japan 1 0.1%
19 Hong Kong 1 0.1%