Data on successive spec draft publication?

Someone suggested that we look at data on *specs* (not just working groups) as we look for efforts not destined for success.  I was hoping to get data that -- for each spec -- would let us track publication of working drafts, LC working drafts, CRs, PRs, Recommendations, and edited Recs.  This would let us get an idea of how long it takes -- minimum, average, maximum -- to get all the way through the process, and perhaps identify red flags such as "If a spec doesn't get to CR in x years, it is unlikely to even do so" and generally look for patterns in the distribution of times it takes specs to move through the process.


Unless I'm missing something, that's not easily available from the /TR page:  There's just one entry for each spec indicating the the maximum level of maturity, not one entry for each time something was published to /TR.  Does anyone know if there is a way to get this more fine grained data out of /TR , the WG database, etc?  Is there a single mailing list (or public log file of some sort) that gets an entry every time something is published?


CC-ing Ian since he seems to know the ins and outs of the W3C data collection and publication system.


Thanks for any suggestions, or pointers to someone who could help.


Mike Champion