Gathering rewards data (loot drop info) historically for an activity - is there an API?

Hey all, First up, thanks very much to Bungie for providing the open API - it's a great way of engaging the community both directly (developers) and indirectly (fans that use the tools developers build off the API). My question is whether it is possible to use the API to find out what loot rewards were during an activity - specifically the raids and the PoE chests. What I would like to do is break down the rewards given to players over a period of time for a particular activity. For example, in the last week the PoE treasure chest (the one that requires the key) for all levels was opened X amount of times. Of these, A% contained exotic gear, B% contained legendary weapons etc. Another example could be that PoE level 32 was completed X amount of times, with etheric light awareded in Y times. These stats could even be broken down further, such as in the A% of exotic gear, A1% consisted of chest pieces etc. Some context - this is for a college project and is inspired by Jalepeno112's excellent report of crucible data. I don't play PvP a whole lot - no word of a (felwinters) lie but I've only earned about 40 crucible marks ever, which is a huge "Thorn" in my side... - but it would be interesting to see just how unlucky I am with the drops I get in PvE ;)