For females:
* 0 to 5 years: < 0.1 mg/24 hours
* 6 to 9 years: < 0.3 mg/24 hours
* 10 to 15 years: 0.1 to 0.6 mg/24 hours
* 16 years and older: 0 to 1.4 mg/ 24 hours.
For males:
* 0 to 5 years: < 0.1 mg/24 hours
* 6 to 9 years: < 0.3 mg/24 hours
* 10 to 15 years: 0.2 to 0.6 mg/24 hours
* 16 years and older: 0.2 to 2 mg/ 24 hours