I found this website. and I think it is pretty accurate on average heights, I saved it so that when I'm making items for different ages I can have the average height for them so I don't have to guess. Figured id share it with everyone. wedding wears specially designed for maternity women

Average Height to Weight Chart - Babies to Teenagers Average height to weight ratio chart by age for kids and teenage girls and boys in inches - pounds and centimeters - kilogramsdisabled-world.com