Asking people their CTR is irrelevant. Type of content, niche, theme, ad placement and so many other factors contribute to CTR. Two sites using the same theme in different niches could have vastly different CTRs.
I have seen that average CTR should be less than 1 per cent for an average user. But it is not an exception. Google adsense users can even have a ctr of 2%. Its just the user preference about the ads. I have even seen people to have ctr as high as 5%.