Health determiners. Absolute figures Average age of smoke use initiation of ex-smokers by sex and age group. Average and Standard deviation. Population aged 15 years old and over that does not currently smoke but did smoke before. Units: average and standard deviation Average Standard deviation BOTH SEXES Total 17.03 3.97 15 to 24 years old 15.76 1.89 25 to 34 years old 16.52 2.49 35 to 44 years old 17.12 3.00 45 to 54 years old 16.69 3.13 55 to 64 years old 17.32 4.27 65 to 74 years old 17.55 5.71 75 to 84 years old 17.45 5.26 85 years old and over 16.65 4.85 MALES Total 16.61 3.48 15 to 24 years old . . 25 to 34 years old 16.70 2.52 35 to 44 years old 17.10 2.96 45 to 54 years old 16.47 2.89 55 to 64 years old 16.47 3.37 65 to 74 years old 16.37 3.89 75 to 84 years old 16.88 4.80 85 years old and over 16.50 4.67 FEMALES Total 17.85 4.69 15 to 24 years old 15.63 1.89 25 to 34 years old 16.33 2.45 35 to 44 years old 17.15 3.04 45 to 54 years old 17.01 3.43 55 to 64 years old 19.24 5.31 65 to 74 years old 24.11 8.90 75 to 84 years old 23.34 6.10 85 years old and over 23.80 7.14 Notes: .Data protected by statistical secrecy The symbol '.' shall be deemed as data which cannot be given due to an insufficient sample. The data corresponding to cells with fewer than 35 thousand persons must be considered with caution, as they may be affected by a high degree of sampling error. Source: Ministry of Public Health, Social Services and Equality and INE