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 441 42%
2 United States 205 19.5%
3 Netherlands 148 14.1%
4 Germany 67 6.4%
5 France 62 5.9%
6 Canada 24 2.3%
7 Sweden 21 2%
8 Czech Republic 16 1.5%
9 Taiwan 15 1.4%
10 Korea, Republic of 14 1.3%
11 Malaysia 6 0.6%
12 Russia 5 0.5%
13 India 5 0.5%
14 Ireland 5 0.5%
15 Hong Kong 4 0.4%
16 Finland 2 0.2%
17 Bulgaria 2 0.2%
18 Singapore 2 0.2%
19 Romania 2 0.2%
20 Mexico 2 0.2%
21 Turkey 2 0.2%
22 Moldova, Republic of 1 0.1%