Apple usually releases new reports in the morning (EST time) but that's not always the case. And because downloads/revenue and subscriptions comes in separate reports, data might come in "out of sync".
We already track when daily reports are released, and are now tracking when subscriptions reports are released every day.
Check out the Store Status Page to see the trend, or follow @itcstatus on Twitter for daily updates.
Yes, it's "itc" status because it's been around for a whillle.