4 years to 6 years: 14.8 - 32.9 mcg/mL
7 years to 8 years: 16.3 - 30.7 mcg/mL
9 years to 10 years: 15.8 - 27.4 mcg/mL
11 years: 15.5 - 27.4 mcg/mL
12 years: 14.8 - 26.2 mcg/mL
13 years: 13.8 - 25.2 mcg/mL
14 years: 12.2 - 25.2 mcg/mL
15 years: 10.8 - 23.8 mcg/mL
16 years: 10.0 - 23.8 mcg/mL
17 years: 8.5 - 23.1 mcg/mL
Male Tanner Stages
Stage I: 13.5 - 28.4 mcg/mL
Stage II: 15.1 - 25.9 mcg/mL
Stage III: 14.0 - 26.3 mcg/mL
Stage IV: 13.2 - 25.0 mcg/mL
Stage V: 12.2 - 23.7 mcg/mL
Female Tanner Stages
Stage I: 14.2 - 28.5 mcg/mL
Stage II: 15.0 - 23.1 mcg/mL
Stage III: 13.7 - 23.0 mcg/mL
Stage IV: 12.0 - 22.8 mcg/mL
Stage V: 9.1 - 22.8 mcg/mL
Males: 12.7 - 25.1 mcg/mL
Females: 13.5 - 30.9 mcg/mL