Quality of life Persons aged 16 and over according to satisfaction with their personal relationships by level of education attained Units: Satisfacción media y porcentajes horizontales. Satisfacción media 0-4 5-6 7-8 9-10 Total 7.9 3.2 14.0 46.6 36.2 Educación primaria o inferior 7.8 4.7 17.4 39.9 38.0 Educación secundaria primera etapa 7.9 3.2 14.9 44.7 37.1 Educación secundaria segunda etapa 7.9 3.1 14.0 47.3 35.5 Educación superior 7.9 2.4 11.7 50.8 35.0 No consta 8.1 4.0 12.1 36.6 47.3 Notes: Source: Instituto Nacional de Estadística