Quality of life Persons aged 16 and over according to frequency of contact (by phone, sms, internet, etc.) with friends by level of educational attainment Units: Porcentajes horizontales. ,Diaria,Semanal (pero no diaria),Varias veces al mes (pero no semanal),Una vez al mes,Al menos una vez al año (pero menos de una vez por mes),Nunca, Total,39.9,29.9,12.5,6.0,5.3,6.5, Educación primaria o inferior,24.2,26.4,13.1,8.2,8.6,19.5, Educación secundaria primera etapa,43.3,27.7,11.8,6.0,5.1,6.0, Educación secundaria segunda etapa,44.9,29.2,11.8,5.8,4.8,3.5, Educación superior,42.5,33.6,13.0,4.9,4.1,1.9, No consta,40.4,16.4,29.4,..,1.9,11.9, Notes: Source: Instituto Nacional de Estadística