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 48 35.8%
2 Netherlands 28 20.9%
3 China 17 12.7%
4 Germany 10 7.5%
5 Canada 9 6.7%
6 Mexico 7 5.2%
7 Korea, Republic of 3 2.2%
8 Malaysia 2 1.5%
9 Hong Kong 2 1.5%
10 Brazil 2 1.5%
11 France 2 1.5%
12 Ukraine 2 1.5%
13 Taiwan 1 0.7%
14 Colombia 1 0.7%