Preventative practices Mammogram at some point in time, by Autonomous Community. Females aged 20 years old and over Units: percentages Total Yes No Total 100.00 52.51 47.49 Andalucía 100.00 46.69 53.31 Aragón 100.00 55.98 44.02 Asturias (Principado de) 100.00 47.69 52.31 Balears (Illes) 100.00 45.75 54.25 Canarias 100.00 52.16 47.84 Cantabria 100.00 47.67 52.33 Castilla y León 100.00 55.17 44.83 Castilla-La Mancha 100.00 51.56 48.44 Cataluña 100.00 58.78 41.22 Comunitat Valenciana 100.00 52.90 47.10 Extremadura 100.00 45.81 54.19 Galicia 100.00 54.06 45.94 Madrid (Comunidad de) 100.00 53.46 46.54 Murcia (Región de) 100.00 45.52 54.48 Navarra (Comunidad Foral de) 100.00 59.51 40.49 País Vasco 100.00 57.30 42.70 Rioja (La) 100.00 52.01 47.99 Ceuta and Melilla 100.00 33.76 66.24 Notes: The symbol '.' shall be deemed as data which cannot be provided since it may be affected by sampling errors. The symbol '..' shall be deemed as data which is not collected. The symbol '...' shall be deemed as an 'error of division by zero'. Source: Ministry of Health and Consumption and INE