Disability, Independence and Dependency Situations Survey Relative figures Percentage of persons with disabilities, 6 to 15 years old, according to the frequency with which they missed school during the 2006-2007 academic year, due to their disability, by sex Unidades: percentage ,Both sexes,Males,Females, Total,100,100,100, Unschooled,1,76,1,27,2,61, Less than one week,60,53,64,2,54,22, One or more weeks, but less than a month,23,1,20,58,27,43, Between one and three months,10,22,9,25,11,9, Between three and six months,2,53,3,02,1,68, Six months or more,1,86,1,69,2,16, Notas: The data corresponding to cells with fewer than 5 thousand persons must be viewed with caution, because it may be affected by large sampling errors. Fuente: National Statistics Institute