Concerned By Adsense Change.

As anyone on warrior forum noticed a significant change in their adsense earnings over the last week?

My CTR has dropped big time.

I see they've made a change recently on our Adsense reports from 'Todays Earnings' to 'Today's estimated earnings' and just wonder if it as affected the program in anyway..

To give you an idea of the change in stats:
The first 6 days of Dec:-
*edited*
This has been typical of my adsense earnings down the years.
I first started building adsense sites in 2005 (I've been concentrating the last few months on Xfactors Adsense method).

But The last 6 days (not including today)
*edited*

And today so far, my ctr sits at 4%

My best Xfactor site was earning a $1 a day for the first month and close to $2 a day for the last few months.
Now:
Dec 11, $0.00
Dec 12, $0.00
Dec 13, $0.00
Dec 14, $0.63
Dec 15, $0.25
Dec 16, $0.00

My sites have the same rankings in the search engines and impressions are consistent. But CTR has just bombed!

Sure i expect bad days now and again with adsense. But i've never noticed a consistant CTR drop like i have now.

I would like to know if anyone else has experienced a change to their adsense earnings. Any ideas i can try to improve things again?

I think i'll try recreating the ads and channels again.

Going to concentrate on backlinks, instead of new sites too for the immediate future.

Welcome any comments.