Lifestyles and preventive practices. Absolute figures 
Frequency of mammograms, by age group. Women aged 20 years old and over who have had a mammogram at some point in time
Units: thousands of persons

	Total	At least once a year	Every two years	Every three years or more	Never	No data recorded	
Total	9,306.8	2,470.8	3,783.3	801.3	2,005.9	245.5	
20 to 24 years of age	.	.	.	.	.	.	
25 to 34 years of age	548.4	74.7	54.2	35.6	352.4	31.5	
35 to 44 years of age	1,484.5	360.1	299.0	152.1	642.3	30.9	
45 to 54 years of age	2,428.2	781.5	1,026.2	202.4	381.9	36.3	
55 to 64 years of age	2,235.2	627.9	1,388.4	118.8	71.4	28.7	
65 to 74 years of age	1,774.3	474.3	848.2	169.0	226.5	56.3	
75 years old and over	746.9	131.5	165.5	119.6	268.5	61.8	
Notes:

.Data protected by statistical secrecy

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