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 64 35.4%
2 China 43 23.8%
3 Japan 12 6.6%
4 Germany 8 4.4%
5 Canada 7 3.9%
6 Netherlands 7 3.9%
7 France 6 3.3%
8 Morocco 5 2.8%
9 Australia 5 2.8%
10 Chile 4 2.2%
11 Ecuador 4 2.2%
12 Korea, Republic of 3 1.7%
13 Russia 3 1.7%
14 Hong Kong 2 1.1%
15 Ukraine 2 1.1%
16 Iran, Islamic Republic of 1 0.6%
17 Italy 1 0.6%
18 Brazil 1 0.6%
19 Singapore 1 0.6%
20 Lithuania 1 0.6%
21 Egypt 1 0.6%