A mother brings in her 3-year-old son for a well-child check-up. She is concerned that he seems different in size from all of the other preschool boys. He was the product of an uneventful pregnancy and vaginal delivery. He has hit all of his developmental milestones on time. On examination he is 26 lbs (11.8 kg) and is 35 inches (89 cm) tall. Otherwise his examination is unremarkable. You give the correct education for his age and then discuss his size. For his age, what are his growth chart percentiles