It depends on the subject. Typical "ego-boo" subjects will be very lucky to get clicked even once in 200 impressions (1/2 of 1%).
A highly targeted topic that people are actually looking for could get 2%, 5%, sometimes even 10% or more.
But since you are asking, it is likely you don't know anything about picking topics to get clicks, so you are probably in the 1% or less range. That means that your 39 impressions are not even close to statistically getting you a click.
Look up SEO and keyword analysis here and on the web in general.