Legal definitions of Indian abound; according to a 1978 congressional survey, there were upwards of 33 separate definitions of "Indian" used in federal legislation. The number of definitions increased when tribal enrollment statutes were included. U.S. Government agencies may have varied definitions of "Indian." For example, the National Center for Health Statistics currently assigns the mother's race to a child born to parents of different "races". When people give multiracial responses to questions of heritage, only the first race is entered.