SEX	SOCIAL CLASS	INDICATOR	Total
BOTH SEXES	Total	Mean	6.78
BOTH SEXES	Total	Standard deviation	14.24
BOTH SEXES	I	Mean	3.96
BOTH SEXES	I	Standard deviation	5.50
BOTH SEXES	II	Mean	9.29
BOTH SEXES	II	Standard deviation	25.60
BOTH SEXES	III	Mean	7.39
BOTH SEXES	III	Standard deviation	16.77
BOTH SEXES	IV	Mean	8.24
BOTH SEXES	IV	Standard deviation	17.20
BOTH SEXES	V	Mean	6.43
BOTH SEXES	V	Standard deviation	11.54
BOTH SEXES	VI	Mean	6.46
BOTH SEXES	VI	Standard deviation	8.87
BOTH SEXES	Not recorded	Mean	6.08
BOTH SEXES	Not recorded	Standard deviation	8.68
Men	Total	Mean	7.37
Men	Total	Standard deviation	16.03
Men	I	Mean	4.13
Men	I	Standard deviation	5.83
Men	II	Mean	7.75
Men	II	Standard deviation	20.89
Men	III	Mean	8.71
Men	III	Standard deviation	21.11
Men	IV	Mean	9.00
Men	IV	Standard deviation	19.67
Men	V	Mean	6.78
Men	V	Standard deviation	11.72
Men	VI	Mean	7.24
Men	VI	Standard deviation	10.83
Men	Not recorded	Mean	5.41
Men	Not recorded	Standard deviation	5.72
Women	Total	Mean	6.24
Women	Total	Standard deviation	12.31
Women	I	Mean	3.79
Women	I	Standard deviation	5.15
Women	II	Mean	10.76
Women	II	Standard deviation	29.32
Women	III	Mean	5.73
Women	III	Standard deviation	8.28
Women	IV	Mean	7.42
Women	IV	Standard deviation	13.96
Women	V	Mean	6.14
Women	V	Standard deviation	11.38
Women	VI	Mean	5.88
Women	VI	Standard deviation	7.02
Women	Not recorded	Mean	6.34
Women	Not recorded	Standard deviation	9.61