The global indicator represents all women of reproductive age. This survey estimate represents women who are married or in a union. Unmet need data exclude women who are currently pregnant, seeking pregnancy or postpartum; either nonsurgically sterile or sterile for noncontraceptive reasons; or are not using contraception but have not had sex since menarche or in the 3 months prior to the inteview. United States of America 2006-2008 National Survey of Family Growth