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 403 55.7%
2 United States 131 18.1%
3 Netherlands 67 9.3%
4 Germany 61 8.4%
5 Canada 18 2.5%
6 Sweden 14 1.9%
7 France 5 0.7%
8 Hong Kong 4 0.6%
9 Macao 3 0.4%
10 Malaysia 2 0.3%
11 Japan 2 0.3%
12 Korea, Republic of 2 0.3%
13 Czech Republic 2 0.3%
14 Benin 2 0.3%
15 Brazil 2 0.3%
16 South Africa 2 0.3%
17 India 1 0.1%
18 Indonesia 1 0.1%
19 Poland 1 0.1%