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 419 45.6%
2 United States 207 22.5%
3 Netherlands 128 13.9%
4 Germany 73 8%
5 Canada 22 2.4%
6 Hong Kong 11 1.2%
7 Taiwan 11 1.2%
8 Sweden 5 0.5%
9 United Kingdom 5 0.5%
10 Japan 5 0.5%
11 India 4 0.4%
12 4 0.4%
13 France 3 0.3%
14 Korea, Republic of 3 0.3%
15 South Africa 3 0.3%
16 Norway 2 0.2%
17 Russia 2 0.2%
18 Singapore 2 0.2%
19 Hungary 2 0.2%
20 Czech Republic 2 0.2%
21 Finland 2 0.2%
22 Luxembourg 1 0.1%
23 Kazakhstan 1 0.1%
24 Ukraine 1 0.1%