 The life expectancy increased from 47 in 1990 to 50 in 2000, while the low life expectancy at birth is attributed to rural mothers, widowed mothers, uneducated mothers and working mothers.The census computed disability based on whether the respondent was blind or visually impaired, partially sighted, deaf or dumb, hard of hearing, mentally ill, historically suffered mental disorders, mentally retarded or physically challenged.There were a total of eight disabilities thus considered compared to 1990 census when only five disabilities were counted.