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 80 58.4%
2 Netherlands 15 10.9%
3 China 14 10.2%
4 France 5 3.6%
5 Korea, Republic of 4 2.9%
6 Germany 3 2.2%
7 India 3 2.2%
8 Belgium 3 2.2%
9 Iran, Islamic Republic of 2 1.5%
10 Thailand 2 1.5%
11 Ukraine 2 1.5%
12 Russia 1 0.7%
13 Greece 1 0.7%
14 Brazil 1 0.7%
15 Croatia 1 0.7%