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 557 51.3%
2 United States 251 23.1%
3 Netherlands 103 9.5%
4 France 62 5.7%
5 Germany 42 3.9%
6 Canada 14 1.3%
7 Taiwan 11 1%
8 Russia 7 0.6%
9 Korea, Republic of 7 0.6%
10 Ireland 7 0.6%
11 Hong Kong 6 0.6%
12 Japan 3 0.3%
13 Ukraine 3 0.3%
14 Switzerland 2 0.2%
15 Australia 2 0.2%
16 Belarus 2 0.2%
17 India 2 0.2%
18 Turkey 2 0.2%
19 Singapore 1 0.1%
20 Poland 1 0.1%