I think that they vary a lot and of course it does depend what you feed them - can't help with opinions on the food as we don't have it here in Wales. Gizzie will be a year old soon and she goes about 4 times a day too whereas Gypsy Rose aged almost 2 (who is fed on the same food exactly) only goes twice. I think that Gizzie has cut it down to 3 times recently though!! She has a sensitive stomach and I have to be careful what I feed her - wondered if your baby has?
You could try a different food maybe? Ana xx