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 364 45.3%
2 Netherlands 158 19.7%
3 United States 145 18%
4 Germany 62 7.7%
5 Canada 27 3.4%
6 Russia 15 1.9%
7 France 8 1%
8 Norway 6 0.7%
9 Singapore 6 0.7%
10 India 4 0.5%
11 Brazil 3 0.4%
12 Turkey 2 0.2%
13 United Kingdom 2 0.2%
14 Ukraine 1 0.1%
15 Korea, Republic of 1 0.1%