If I remember rightly the stand numbers go up to 36, but stand 4 is a cross over of stand 5/6 so can't be used at the same time.
Stand 7, 17, 18, 19, 20, 27 and 28 don't exist.
However there is a 29L and 29R that can be used at the same time. There's also now 2 more stands used as a last resort, but not sure their numbers.
I make that 31, but again not sure how operational these extra 2 stands are. If only as a last resort with some clever parking, that's 29 fully operational parking stands.... full up!
I would expect EZY to put a 14th aircraft in next year too. I'm surprised they don't use aircraft from other bases like FR do to ease the AM congestion.