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 368 53.6%
2 Netherlands 124 18%
3 United States 109 15.9%
4 Germany 30 4.4%
5 Hong Kong 12 1.7%
6 Canada 10 1.5%
7 Singapore 9 1.3%
8 Malaysia 6 0.9%
9 France 5 0.7%
10 Spain 4 0.6%
11 Korea, Republic of 3 0.4%
12 Macao 2 0.3%
13 Australia 2 0.3%
14 Taiwan 2 0.3%
15 1 0.1%