Errores de muestreo
Personas que han tenido parejas ocasionales en último año. Coefic. de  variación por sexo, comunidad autónoma y uso de preservativo con  parejas ocasionales.
Unidades: %

,Total,Siempre,No siempre,
Ambos sexos,
    Total,2,91,3,88,4,86,
    Andalucía,6,49,9,45,12,63,
    Aragón,8,91,10,94,19,86,
    Asturias (Principado de),16,26,19,03,16,70,
    Balears (Illes),15,29,18,88,22,79,
    Canarias,15,92,19,52,20,41,
    Cantabria,11,58,13,68,25,44,
    Castilla y León,8,04,10,28,19,42,
    Castilla-La Mancha,8,98,16,12,20,95,
    Cataluña,8,30,13,29,13,42,
    Comunidad Valenciana,9,53,9,94,15,55,
    Extremadura,8,35,19,74,20,24,
    Galicia,7,53,12,02,13,50,
    Madrid (Comunidad de),10,85,13,40,14,50,
    Murcia (Región de),11,59,14,33,21,47,
    Navarra (Comunidad Foral de),10,98,13,44,13,38,
    País Vasco,12,87,19,05,19,77,
    Rioja (La),22,01,28,95,36,97,
    Ceuta y Melilla,22,58,33,59,33,75,
Varones,
    Total,3,25,4,56,5,62,
    Andalucía,7,60,11,04,16,59,
    Aragón,12,64,16,88,23,28,
    Asturias (Principado de),15,14,19,82,19,21,
    Balears (Illes),11,89,17,21,31,03,
    Canarias,18,55,19,99,26,18,
    Cantabria,9,69,13,09,26,50,
    Castilla y León,9,18,11,67,24,75,
    Castilla-La Mancha,9,38,19,73,20,54,
    Cataluña,9,50,15,15,14,91,
    Comunidad Valenciana,11,17,11,78,16,16,
    Extremadura,9,45,22,18,18,54,
    Galicia,8,61,16,91,19,33,
    Madrid (Comunidad de),12,30,17,73,15,59,
    Murcia (Región de),12,43,16,91,17,25,
    Navarra (Comunidad Foral de),7,44,10,30,17,86,
    País Vasco,15,00,22,29,27,82,
    Rioja (La),25,15,40,78,36,97,
    Ceuta y Melilla,27,77,34,94,43,80,
Mujeres,
    Total,5,60,7,06,9,20,
    Andalucía,15,13,20,72,18,36,
    Aragón,28,84,42,99,47,27,
    Asturias (Principado de),30,43,41,36,43,11,
    Balears (Illes),38,11,53,52,59,67,
    Canarias,28,78,32,97,44,06,
    Cantabria,41,57,52,92,59,97,
    Castilla y León,16,81,25,66,47,30,
    Castilla-La Mancha,31,18,26,08,51,26,
    Cataluña,13,43,17,54,24,49,
    Comunidad Valenciana,19,71,23,75,34,22,
    Extremadura,23,71,31,77,32,76,
    Galicia,21,34,21,78,30,41,
    Madrid (Comunidad de),14,98,18,52,23,02,
    Murcia (Región de),27,25,48,02,41,27,
    Navarra (Comunidad Foral de),27,61,34,20,21,52,
    País Vasco,19,33,22,96,34,07,
    Rioja (La),51,15,51,15,0,00,
    Ceuta y Melilla,35,45,37,04,38,73,
Notas:
Fuente: Instituto Nacional de Estadística