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 315 42.7%
2 United States 160 21.7%
3 Netherlands 150 20.4%
4 Germany 62 8.4%
5 Canada 13 1.8%
6 Russia 9 1.2%
7 India 5 0.7%
8 France 4 0.5%
9 United Kingdom 3 0.4%
10 Taiwan 2 0.3%
11 Ukraine 2 0.3%
12 Korea, Republic of 2 0.3%
13 Norway 2 0.3%
14 Hong Kong 2 0.3%
15 Denmark 2 0.3%
16 Australia 2 0.3%
17 Brazil 2 0.3%