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 411 46.5%
2 United States 203 23%
3 Netherlands 151 17.1%
4 Germany 56 6.3%
5 Canada 14 1.6%
6 Russia 10 1.1%
7 Ireland 9 1%
8 India 6 0.7%
9 Hong Kong 4 0.5%
10 France 3 0.3%
11 United Kingdom 3 0.3%
12 Taiwan 3 0.3%
13 Turkey 2 0.2%
14 Norway 2 0.2%
15 Israel 2 0.2%
16 Korea, Republic of 1 0.1%
17 Brazil 1 0.1%
18 Poland 1 0.1%
19 Ukraine 1 0.1%