As a prospective MO, this is the kind of nerdy thing that interests me. I normally look at US stats, cos they carry out way more research and publish a lot more of it. However having a scoot around all I could find was standing height 64-77 inches and sitting height 34-40 inches. I know this is US but its bound to be similar. There were no published weight figures however basing it upon the fact that the forces impose BMI requirements I calculated the weight range as 108 lbs - 210 lbs. Sorry this isn't very specific. If i find anything else I'll let you know.