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 528 49.1%
2 United States 297 27.6%
3 Germany 64 5.9%
4 Netherlands 53 4.9%
5 France 50 4.6%
6 Canada 22 2%
7 Czech Republic 14 1.3%
8 Hong Kong 12 1.1%
9 India 8 0.7%
10 Korea, Republic of 7 0.7%
11 Indonesia 6 0.6%
12 Ireland 4 0.4%
13 Russia 4 0.4%
14 Singapore 2 0.2%
15 Bahrain 2 0.2%
16 Brazil 2 0.2%
17 Japan 1 0.1%