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 519 49.3%
2 United States 213 20.2%
3 Netherlands 116 11%
4 Germany 66 6.3%
5 France 35 3.3%
6 Canada 27 2.6%
7 Czech Republic 14 1.3%
8 Macao 8 0.8%
9 Hong Kong 7 0.7%
10 India 6 0.6%
11 Japan 6 0.6%
12 Korea, Republic of 6 0.6%
13 Russia 5 0.5%
14 United Kingdom 5 0.5%
15 Turkey 4 0.4%
16 Malaysia 4 0.4%
17 Yemen 3 0.3%
18 Singapore 2 0.2%
19 Switzerland 2 0.2%
20 Brazil 2 0.2%
21 Norway 1 0.1%
22 Poland 1 0.1%