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 50 32.3%
2 United States 48 31%
3 Russia 12 7.7%
4 Germany 8 5.2%
5 Netherlands 7 4.5%
6 South Africa 6 3.9%
7 France 6 3.9%
8 Canada 3 1.9%
9 Chile 2 1.3%
10 India 2 1.3%
11 Iran, Islamic Republic of 2 1.3%
12 Thailand 2 1.3%
13 Australia 2 1.3%
14 Korea, Republic of 2 1.3%
15 Hong Kong 1 0.6%
16 Ireland 1 0.6%
17 Japan 1 0.6%