Last year, the United States saw a decline in the number of births, according to CDC data.
Here are six statistics:
1. In 2015, women gave birth to nearly 3.98 million infants, a 1 percent decrease from 2014.
2 The birth rate for teenage mothers aged 15 to 19 decreased 8 percent last year.
3. The nation had an increase in birth rates for women in their 30s and early 40s, but a decline in birth rates amongst women in their 20s.
5. The nation's general fertility rate fell 1 percent last year.
6. Cesarean delivery rates comprised 32 percents of all U.S. births in 2015.
