Go to the bugs section on the forums, there is a whole discussion including staff...
"Sorry for the stats delays.
We had similar delays earlier this week (13th and 14th that I know of).
I have sent a message to see if we can track down the issue... I sent this to our engineering team, so hopefully we can get it fixed soon.
If anyone notices it catch up to current before I do, a post here would be much appreciated as I probably won't be back in the forums until Monday."