[Stat Geeks] Where to find data on FTA by shot location?

i'm trying to find data on how many free throws are generated per shot given the field goal attempt location (in the paint, 3 pointers, etc). after a quick google search and looking at some of the stats sites, either this is difficult to find or i just am not good at finding it (probably the latter). i once found something from 82games but it was only for part of one season. can any of you stat junkies help me out?


i suppose in a related question, are there league-wide shot charts from each season anywhere? hoopdata goes back to 06-07.

 

just to see how foul rates have changed over time. given the nearly historic low that fta per fga are at right now, i wonder how much is due to actual foul rate differences and how much is due to where the shots are now coming from (i.e. more 3's now). i have that one little snippet of data from something like 2007 from 82games, but without more numbers i don't know how good my guesstimates to fill in the rest of the data are. and without league wide shot charts, it's hard to know where shots came from back in the day when hardly anyone shot 3's (i.e. were the vast majority of today's 3's just long 2's back in the day or were they replaced by more post-ups and drives than you would think?).