Help me find stats on iPad app prices by category

I am trying, and failing, to find *recent *numbers on what iPad apps generally cost, especially broken down for the App Store’s different categories. For example, what proportion of game apps are free vs. cost $.99 vs. $1.99 etc.? How about education apps?

What’s a good source for that kind of information? All I’m finding wit mah Google Fu is lists of apps that have recently dropped in price, or old articles about how much more expensive iPad apps are than iPhone apps, from when the iPad was new. Or old info on what percentage of *all *apps were free. Or lists of ridiculously high-priced apps.

:confused: