BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 272 34.6%
2 China 264 33.5%
3 Netherlands 81 10.3%
4 Germany 52 6.6%
5 France 26 3.3%
6 United Kingdom 20 2.5%
7 Russia 14 1.8%
8 Hong Kong 10 1.3%
9 Canada 7 0.9%
10 Portugal 7 0.9%
11 Korea, Republic of 6 0.8%
12 Taiwan 5 0.6%
13 5 0.6%
14 Ireland 4 0.5%
15 India 3 0.4%
16 Moldova, Republic of 3 0.4%
17 Japan 2 0.3%
18 Czech Republic 2 0.3%
19 Estonia 2 0.3%
20 Poland 1 0.1%
21 Ukraine 1 0.1%