Sex;Age group;Book format;Total BOTH SEX;Total [18, 65 ];Only e-books;1.42 BOTH SEX;Total [18, 65 ];Only paper books;92.13 BOTH SEX;Total [18, 65 ];Both e-books and paper books;6.45 BOTH SEX;Subtotal [25, 64];Only e-books;1.38 BOTH SEX;Subtotal [25, 64];Only paper books;92.41 BOTH SEX;Subtotal [25, 64];Both e-books and paper books;6.21 BOTH SEX;18 to 24 years old;Only e-books;. BOTH SEX;18 to 24 years old;Only paper books;89.80 BOTH SEX;18 to 24 years old;Both e-books and paper books;8.40 BOTH SEX;25 to 34 years old;Only e-books;2.01 BOTH SEX;25 to 34 years old;Only paper books;90.58 BOTH SEX;25 to 34 years old;Both e-books and paper books;7.40 BOTH SEX;35 to 44 years old;Only e-books;1.44 BOTH SEX;35 to 44 years old;Only paper books;91.85 BOTH SEX;35 to 44 years old;Both e-books and paper books;6.71 BOTH SEX;45 to 54 years old;Only e-books;1.10 BOTH SEX;45 to 54 years old;Only paper books;93.39 BOTH SEX;45 to 54 years old;Both e-books and paper books;5.51 BOTH SEX;55 to 65 years old;Only e-books;. BOTH SEX;55 to 65 years old;Only paper books;94.71 BOTH SEX;55 to 65 years old;Both e-books and paper books;4.59 MALE;Total [18, 65 ];Only e-books;1.98 MALE;Total [18, 65 ];Only paper books;89.42 MALE;Total [18, 65 ];Both e-books and paper books;8.60 MALE;Subtotal [25, 64];Only e-books;1.99 MALE;Subtotal [25, 64];Only paper books;89.54 MALE;Subtotal [25, 64];Both e-books and paper books;8.47 MALE;18 to 24 years old;Only e-books;. MALE;18 to 24 years old;Only paper books;88.19 MALE;18 to 24 years old;Both e-books and paper books;9.81 MALE;25 to 34 years old;Only e-books;3.00 MALE;25 to 34 years old;Only paper books;87.23 MALE;25 to 34 years old;Both e-books and paper books;9.77 MALE;35 to 44 years old;Only e-books;2.12 MALE;35 to 44 years old;Only paper books;89.35 MALE;35 to 44 years old;Both e-books and paper books;8.53 MALE;45 to 54 years old;Only e-books;. MALE;45 to 54 years old;Only paper books;90.30 MALE;45 to 54 years old;Both e-books and paper books;8.32 MALE;55 to 65 years old;Only e-books;. MALE;55 to 65 years old;Only paper books;92.37 MALE;55 to 65 years old;Both e-books and paper books;6.55 FEMALE;Total [18, 65 ];Only e-books;0.99 FEMALE;Total [18, 65 ];Only paper books;94.20 FEMALE;Total [18, 65 ];Both e-books and paper books;4.81 FEMALE;Subtotal [25, 64];Only e-books;0.91 FEMALE;Subtotal [25, 64];Only paper books;94.61 FEMALE;Subtotal [25, 64];Both e-books and paper books;4.47 FEMALE;18 to 24 years old;Only e-books;. FEMALE;18 to 24 years old;Only paper books;90.96 FEMALE;18 to 24 years old;Both e-books and paper books;7.38 FEMALE;25 to 34 years old;Only e-books;. FEMALE;25 to 34 years old;Only paper books;93.18 FEMALE;25 to 34 years old;Both e-books and paper books;5.57 FEMALE;35 to 44 years old;Only e-books;. FEMALE;35 to 44 years old;Only paper books;93.76 FEMALE;35 to 44 years old;Both e-books and paper books;5.32 FEMALE;45 to 54 years old;Only e-books;. FEMALE;45 to 54 years old;Only paper books;95.81 FEMALE;45 to 54 years old;Both e-books and paper books;3.31 FEMALE;55 to 65 years old;Only e-books;. FEMALE;55 to 65 years old;Only paper books;96.49 FEMALE;55 to 65 years old;Both e-books and paper books;3.09