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 516 51.8%
2 United States 196 19.7%
3 Netherlands 149 15%
4 Germany 49 4.9%
5 Canada 15 1.5%
6 Hong Kong 13 1.3%
7 United Kingdom 9 0.9%
8 France 8 0.8%
9 Taiwan 7 0.7%
10 Japan 6 0.6%
11 Russia 6 0.6%
12 Singapore 5 0.5%
13 Macao 3 0.3%
14 Korea, Republic of 2 0.2%
15 Slovakia 2 0.2%
16 India 2 0.2%
17 Brazil 2 0.2%
18 United Arab Emirates 2 0.2%
19 Colombia 1 0.1%
20 Iran, Islamic Republic of 1 0.1%
21 South Africa 1 0.1%
22 Switzerland 1 0.1%