Sampling errors Persons who have had casual partners in the last year. Variation coefficient by Autonomous Community and sex. Units: % ,Both sexes,Males,Females, Total,2.91,3.25,5.60, Andalucía,6.49,7.60,15.13, Aragón,8.91,12.64,28.84, Asturias (Principado de),16.26,15.14,30.43, Balears (Illes),15.29,11.89,38.11, Canarias,15.92,18.55,28.78, Cantabria,11.58,9.69,41.57, Castilla y León,8.04,9.18,16.81, Castilla-La Mancha,8.98,9.38,31.18, Cataluña,8.30,9.50,13.43, Comunidad Valenciana,9.53,11.17,19.71, Extremadura,8.35,9.45,23.71, Galicia,7.53,8.61,21.34, Madrid (Comunidad de),10.85,12.30,14.98, Murcia (Región de),11.59,12.43,27.25, Navarra (Comunidad Foral de),10.98,7.44,27.61, País Vasco,12.87,15.00,19.33, Rioja (La),22.01,25.15,51.15, Ceuta y Melilla,22.58,27.77,35.45, Notes: Source: National Statistics Institute