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 United States 83 46.9%
2 China 22 12.4%
3 Germany 20 11.3%
4 Netherlands 17 9.6%
5 Serbia 8 4.5%
6 India 5 2.8%
7 Korea, Republic of 4 2.3%
8 France 4 2.3%
9 New Zealand 3 1.7%
10 Portugal 3 1.7%
11 Chile 2 1.1%
12 Spain 2 1.1%
13 Turkey 2 1.1%
14 United Kingdom 1 0.6%
15 Philippines 1 0.6%