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