development of the Index using data on 10 key vulnerability factors, such as high-emission job density, financial security, skills and education, and social capital
datblygu’r Mynegai gan ddefnyddio data ar 10 o ffactorau bregusrwydd allweddol, megis dwysedd swyddi allyriadau uchel, sicrwydd ariannol, sgiliau ac addysg a chyfalaf cymdeithasol