<prompt> Translate the following text to EnglishUwiano wa ndoa za watu weusi na wazungu ulianza kupungua mapema kuliko uwiano wa wazungu na haionyeshi mabadiliko makubwa katika mwenendo karibu 1970.  <response>: The black shotgun-marriage ratio began to fall earlier than the white ratio and shows no significant change in trend around 1970. 