Question about Adsense

I have posted in the Google Adsense Help forum but it is hard to get any answers there.  Does any of my readers know why when I get a click(s) in the adsense for feeds report my earnings stay at zero? I hope someone knows the answer because I am not able to get any answer from the Google forum. Adsense for content give me a little $ for clicks but not the feeds.

Thanks!