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 456 50.7%
2 United States 162 18%
3 Netherlands 107 11.9%
4 Germany 83 9.2%
5 Canada 18 2%
6 Sweden 15 1.7%
7 Russia 13 1.4%
8 France 8 0.9%
9 Korea, Republic of 7 0.8%
10 Ireland 6 0.7%
11 Moldova, Republic of 4 0.4%
12 South Africa 3 0.3%
13 Hong Kong 3 0.3%
14 India 3 0.3%
15 Ukraine 3 0.3%
16 Ghana 2 0.2%
17 Australia 2 0.2%
18 Brazil 2 0.2%
19 Norway 2 0.2%
20 Thailand 1 0.1%