Lifestyles and preventive practices. Absolute figures Average age at beginning to use tobacco of daily smokers, by sex and age group. Average and standard deviation. Population aged 16 years old and over that smokes daily Units: average and standard deviation Average Standard deviation BOTH SEXES Total 17.35 4.55 16 to 24 years of age 15.84 2.16 25 to 34 years of age 16.98 3.06 35 to 44 years of age 17.45 4.31 45 to 54 years of age 17.36 4.46 55 to 64 years of age 18.72 6.21 65 to 74 years of age 19.99 8.87 75 years old and over 19.27 9.21 MALES Total 17.04 4.14 16 to 24 years of age 15.91 2.09 25 to 34 years of age 17.07 3.03 35 to 44 years of age 17.33 4.33 45 to 54 years of age 16.83 4.17 55 to 64 years of age 17.33 5.03 65 to 74 years of age 17.61 6.09 75 years old and over 17.80 7.40 FEMALES Total 17.78 5.05 16 to 24 years of age 15.76 2.22 25 to 34 years of age 16.86 3.08 35 to 44 years of age 17.60 4.28 45 to 54 years of age 18.07 4.74 55 to 64 years of age 21.89 7.38 65 to 74 years of age 28.82 11.54 75 years old and over 25.85 12.91 Notes: 1) Population aged 16 years old and over that smokes daily 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