National Total	Autonomous Communities and Cities	Frequency of mammograms	Total
Total		Total	100.00
Total		At least once a year	27.27
Total		Every two years	41.75
Total		Every three years or more	8.84
Total		Never	22.14
Total	Andalucía	Total	100.00
Total	Andalucía	At least once a year	24.59
Total	Andalucía	Every two years	36.17
Total	Andalucía	Every three years or more	8.19
Total	Andalucía	Never	31.06
Total	Aragón	Total	100.00
Total	Aragón	At least once a year	30.76
Total	Aragón	Every two years	38.77
Total	Aragón	Every three years or more	6.01
Total	Aragón	Never	24.46
Total	Asturias (Principado de)	Total	100.00
Total	Asturias (Principado de)	At least once a year	28.27
Total	Asturias (Principado de)	Every two years	45.46
Total	Asturias (Principado de)	Every three years or more	8.95
Total	Asturias (Principado de)	Never	17.31
Total	Balears (Illes)	Total	100.00
Total	Balears (Illes)	At least once a year	22.71
Total	Balears (Illes)	Every two years	39.01
Total	Balears (Illes)	Every three years or more	15.20
Total	Balears (Illes)	Never	23.07
Total	Canarias	Total	100.00
Total	Canarias	At least once a year	29.08
Total	Canarias	Every two years	39.45
Total	Canarias	Every three years or more	14.14
Total	Canarias	Never	17.33
Total	Cantabria	Total	100.00
Total	Cantabria	At least once a year	28.00
Total	Cantabria	Every two years	45.66
Total	Cantabria	Every three years or more	8.49
Total	Cantabria	Never	17.86
Total	Castilla y León	Total	100.00
Total	Castilla y León	At least once a year	20.26
Total	Castilla y León	Every two years	53.48
Total	Castilla y León	Every three years or more	9.05
Total	Castilla y León	Never	17.20
Total	Castilla-La Mancha	Total	100.00
Total	Castilla-La Mancha	At least once a year	16.14
Total	Castilla-La Mancha	Every two years	55.22
Total	Castilla-La Mancha	Every three years or more	5.52
Total	Castilla-La Mancha	Never	23.13
Total	Cataluña	Total	100.00
Total	Cataluña	At least once a year	30.38
Total	Cataluña	Every two years	41.57
Total	Cataluña	Every three years or more	10.53
Total	Cataluña	Never	17.51
Total	Comunitat Valenciana	Total	100.00
Total	Comunitat Valenciana	At least once a year	23.32
Total	Comunitat Valenciana	Every two years	47.49
Total	Comunitat Valenciana	Every three years or more	7.30
Total	Comunitat Valenciana	Never	21.90
Total	Extremadura	Total	100.00
Total	Extremadura	At least once a year	26.12
Total	Extremadura	Every two years	37.23
Total	Extremadura	Every three years or more	5.53
Total	Extremadura	Never	31.11
Total	Galicia	Total	100.00
Total	Galicia	At least once a year	21.48
Total	Galicia	Every two years	44.80
Total	Galicia	Every three years or more	8.22
Total	Galicia	Never	25.50
Total	Madrid (Comunidad de)	Total	100.00
Total	Madrid (Comunidad de)	At least once a year	40.45
Total	Madrid (Comunidad de)	Every two years	28.10
Total	Madrid (Comunidad de)	Every three years or more	10.80
Total	Madrid (Comunidad de)	Never	20.66
Total	Murcia (Región de)	Total	100.00
Total	Murcia (Región de)	At least once a year	24.42
Total	Murcia (Región de)	Every two years	43.38
Total	Murcia (Región de)	Every three years or more	6.65
Total	Murcia (Región de)	Never	25.55
Total	Navarra (Comunidad Foral de)	Total	100.00
Total	Navarra (Comunidad Foral de)	At least once a year	14.64
Total	Navarra (Comunidad Foral de)	Every two years	62.07
Total	Navarra (Comunidad Foral de)	Every three years or more	5.43
Total	Navarra (Comunidad Foral de)	Never	17.86
Total	País Vasco	Total	100.00
Total	País Vasco	At least once a year	27.48
Total	País Vasco	Every two years	50.87
Total	País Vasco	Every three years or more	3.99
Total	País Vasco	Never	17.66
Total	Rioja (La)	Total	100.00
Total	Rioja (La)	At least once a year	17.44
Total	Rioja (La)	Every two years	56.35
Total	Rioja (La)	Every three years or more	15.34
Total	Rioja (La)	Never	10.87
Ceuta and Melilla		Total	100.00
Ceuta and Melilla		At least once a year	35.59
Ceuta and Melilla		Every two years	11.28
Ceuta and Melilla		Every three years or more	21.75
Ceuta and Melilla		Never	31.38