Breastfeeding rates, by maternal age and duration, 2003 (vertical bar chart): Under 20 years: ever breastfed, 54.5%; breastfed at 6 months, 14.9%; exclusively breastfed at 6 months, 6.1%. 20-29 years: ever breastfed, 67.6%; breastfed at 6 months, 30.6%; exclusively breastfed at 6 months, 12.5%. 30 years or older: ever breastfed, 74.9%; breastfed at 6 months, 42.6%; exclusively breastfed at 6 months, 16.4%.

Source: Centers for Disease Control and Prevention. Breastfeeding Practices: Results from the 2003 National Immunization Survey.