Sex;Social class;Average number;Total BOTH SEXES;Total;Average;4.32 BOTH SEXES;Total;Standard deviation;1.74 BOTH SEXES;I;Average;4.60 BOTH SEXES;I;Standard deviation;1.64 BOTH SEXES;II;Average;4.58 BOTH SEXES;II;Standard deviation;1.71 BOTH SEXES;III;Average;4.43 BOTH SEXES;III;Standard deviation;1.68 BOTH SEXES;IV;Average;4.31 BOTH SEXES;IV;Standard deviation;1.69 BOTH SEXES;V;Average;4.17 BOTH SEXES;V;Standard deviation;1.78 BOTH SEXES;VI;Average;3.93 BOTH SEXES;VI;Standard deviation;1.86 BOTH SEXES;No data recorded;Average;4.36 BOTH SEXES;No data recorded;Standard deviation;1.93 MALES;Total;Average;4.34 MALES;Total;Standard deviation;1.69 MALES;I;Average;4.59 MALES;I;Standard deviation;1.62 MALES;II;Average;4.65 MALES;II;Standard deviation;1.63 MALES;III;Average;4.46 MALES;III;Standard deviation;1.62 MALES;IV;Average;4.37 MALES;IV;Standard deviation;1.59 MALES;V;Average;4.17 MALES;V;Standard deviation;1.75 MALES;VI;Average;3.87 MALES;VI;Standard deviation;1.80 MALES;No data recorded;Average;. MALES;No data recorded;Standard deviation;. FEMALES;Total;Average;4.29 FEMALES;Total;Standard deviation;1.81 FEMALES;I;Average;4.62 FEMALES;I;Standard deviation;1.67 FEMALES;II;Average;4.51 FEMALES;II;Standard deviation;1.79 FEMALES;III;Average;4.40 FEMALES;III;Standard deviation;1.74 FEMALES;IV;Average;4.20 FEMALES;IV;Standard deviation;1.85 FEMALES;V;Average;4.17 FEMALES;V;Standard deviation;1.81 FEMALES;VI;Average;3.97 FEMALES;VI;Standard deviation;1.91 FEMALES;No data recorded;Average;. FEMALES;No data recorded;Standard deviation;.