I and many others believe that the last couple of days at least that there is some problem with Google Adsense stats. Everyday this month I've been getting 3-9 clicks with a excellent CTR, however the last 2 days have been terrible! Yesterday only 1 click Today 0 clicks However page impressions are up recently and I have added lots of new content as well, so this makes no sense at all, in fact I have over 40 pages on my site, so clicks are expected daily. I'd bet my both my legs I would have gotten several clicks on both days but it seems something is really wrong, I'm not the only one who has noticed this. Anyone experiencing something similar?
If 3~9clicks can give you good CTR, mean that your site has low traffic. You need to get more targeted traffic for more stable number of clicks. Low traffic site having a unstable CTR is normal.