Congratulations archimedes. That's great. I hope you don't actually pronounce Harvard that way though (I have yet to see someone pronounce it that way seriously, but it would be fun to hear).
I think archimedes is trying to say that his particular stats won't help you gauge your chances at getting an interview, which I pretty much agree with considering the broad range of applicants (numbers-wise, I should say) who have received interview invites.
Really, the most useful information is the complete date as it gives you a good estimate as to how far they have reviewed applications thus far.
It's funny considering how common it is, but posting stats doesn't really provide much information, esp. for interview invites. There's nothing wrong with posting numbers, and some people might find it helpful (esp. for those with relatively lower numbers, as they provide hope that adcoms look at the whole application rather than just numbers), but really, using numbers from MSAR and USNews would give you a pretty good ball-park on your relative chances of getting interviewed. Nothing is certain though.
This post was far longer than I intended, so I'm just going to end with another congratulations for archimedes and all else who get interview invites.
-Dr. P.