01. Households, persons and average size of the household 01017.px Units: Number ;Households;Persons;Average size of the household; Total;14,865,707;43,106,664;2.90; Without studies and illiterates;1,734,693;4,088,548;2.36; Primary education;4,778,041;13,132,145;2.75; Secondary education, first cycle;3,020,329;9,696,055;3.21; Secondary education, second cycle;2,332,737;7,173,612;3.08; Higher non-university studies;711,082;2,148,061;3.02; University studies, first cycle;900,296;2,605,673;2.89; University studies, 2nd and 3rd cycle;1,341,879;4,118,209;3.07; Notes: 1) The category 'Special education and adult education' included in the 'Total' does not appear due to lack of representation Source: National Statistics Institute