http://www.cdc.gov/nchs/data/databriefs/db19.htm age 25 http://www.cdc.gov/nchs/data/databriefs/db19.htm new federal data Goodwin, McGill, & Chandra, 2009 el matrimonio en Estados Unidos marriage in the United States married new federal data new federal data U.S. Centers for Disease Control and Prevention up steadily 80% of adults U.S. Centers for Disease Control and Prevention marriage in the United States U.S. Centers for Disease Control and Prevention