SEX;SOCIAL CLASS;INDICATOR;Total BOTH SEXES;Total;Mean;2.93 BOTH SEXES;Total;Standard deviation;11.48 BOTH SEXES;I;Mean;3.35 BOTH SEXES;I;Standard deviation;22.53 BOTH SEXES;II;Mean;2.58 BOTH SEXES;II;Standard deviation;3.45 BOTH SEXES;III;Mean;2.39 BOTH SEXES;III;Standard deviation;3.73 BOTH SEXES;IV;Mean;4.07 BOTH SEXES;IV;Standard deviation;15.65 BOTH SEXES;V;Mean;2.45 BOTH SEXES;V;Standard deviation;4.47 BOTH SEXES;VI;Mean;3.41 BOTH SEXES;VI;Standard deviation;6.92 BOTH SEXES;Not recorded;Mean;1.93 BOTH SEXES;Not recorded;Standard deviation;2.19 Men;Total;Mean;2.83 Men;Total;Standard deviation;13.37 Men;I;Mean;4.45 Men;I;Standard deviation;30.80 Men;II;Mean;2.51 Men;II;Standard deviation;3.56 Men;III;Mean;2.14 Men;III;Standard deviation;2.54 Men;IV;Mean;2.76 Men;IV;Standard deviation;4.43 Men;V;Mean;2.42 Men;V;Standard deviation;3.89 Men;VI;Mean;3.41 Men;VI;Standard deviation;7.59 Men;Not recorded;Mean;1.76 Men;Not recorded;Standard deviation;1.61 Women;Total;Mean;3.01 Women;Total;Standard deviation;9.40 Women;I;Mean;2.11 Women;I;Standard deviation;2.47 Women;II;Mean;2.65 Women;II;Standard deviation;3.34 Women;III;Mean;2.67 Women;III;Standard deviation;4.69 Women;IV;Mean;5.38 Women;IV;Standard deviation;21.57 Women;V;Mean;2.47 Women;V;Standard deviation;4.89 Women;VI;Mean;3.41 Women;VI;Standard deviation;6.45 Women;Not recorded;Mean;2.07 Women;Not recorded;Standard deviation;2.55