Ch??tham gia cá c??c khi ???eighteen tu?i: Theo quy ??nh c?a pháp lu?t, ng??i ch?i ph?i ???18 tu?i tr??lên ???tham gia cá c??c tr?c tuy?n.Census questionnaire, people have been requested to examine all races which placed on them, together with Black or African American. This count contains all who selected Black or African American of their re