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 601 40.4%
2 United States 335 22.5%
3 Netherlands 153 10.3%
4 France 94 6.3%
5 Germany 88 5.9%
6 Russia 87 5.9%
7 Singapore 36 2.4%
8 Canada 28 1.9%
9 Czech Republic 16 1.1%
10 Hong Kong 7 0.5%
11 North Macedonia 7 0.5%
12 Taiwan 7 0.5%
13 Ukraine 7 0.5%
14 Portugal 6 0.4%
15 Poland 3 0.2%
16 Korea, Republic of 2 0.1%
17 India 2 0.1%
18 2 0.1%
19 Australia 1 0.1%
20 Jamaica 1 0.1%
21 Japan 1 0.1%
22 Mauritius 1 0.1%
23 Norway 1 0.1%
24 Spain 1 0.1%