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 325 49.6%
2 United States 121 18.5%
3 Netherlands 101 15.4%
4 Germany 61 9.3%
5 Canada 17 2.6%
6 France 8 1.2%
7 Ukraine 6 0.9%
8 Norway 3 0.5%
9 Uzbekistan 2 0.3%
10 Ecuador 2 0.3%
11 India 2 0.3%
12 Korea, Republic of 2 0.3%
13 Hong Kong 1 0.2%
14 Brazil 1 0.2%
15 United Kingdom 1 0.2%
16 Singapore 1 0.2%
17 Turkey 1 0.2%