The top of the page is not showing the accumulated total for me either, but I am still getting payments and the amounts seem about right.  Also, I am still getting high amounts per ad.  Generally they start out in the 80-90's and then drop down into the 20-50s but pick back up again later in the day when I go through them once more.  Today, I even got a 104 ad.  That was a first.  Maybe the ads are targeted to your area/language/etc.

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