Sex	Social class	Average number	Total
BOTH SEXES	Total	Average	48.50
BOTH SEXES	Total	Standard deviation	7.16
BOTH SEXES	I	Average	49.54
BOTH SEXES	I	Standard deviation	6.02
BOTH SEXES	II	Average	49.11
BOTH SEXES	II	Standard deviation	6.59
BOTH SEXES	III	Average	49.00
BOTH SEXES	III	Standard deviation	6.66
BOTH SEXES	IV	Average	48.81
BOTH SEXES	IV	Standard deviation	6.99
BOTH SEXES	V	Average	48.24
BOTH SEXES	V	Standard deviation	7.34
BOTH SEXES	VI	Average	47.30
BOTH SEXES	VI	Standard deviation	8.03
BOTH SEXES	No data recorded	Average	47.30
BOTH SEXES	No data recorded	Standard deviation	8.49
MALES	Total	Average	48.55
MALES	Total	Standard deviation	7.09
MALES	I	Average	49.40
MALES	I	Standard deviation	6.13
MALES	II	Average	49.10
MALES	II	Standard deviation	6.72
MALES	III	Average	48.98
MALES	III	Standard deviation	6.70
MALES	IV	Average	48.84
MALES	IV	Standard deviation	6.92
MALES	V	Average	48.38
MALES	V	Standard deviation	7.14
MALES	VI	Average	47.16
MALES	VI	Standard deviation	8.19
MALES	No data recorded	Average	47.72
MALES	No data recorded	Standard deviation	8.07
FEMALES	Total	Average	48.44
FEMALES	Total	Standard deviation	7.23
FEMALES	I	Average	49.68
FEMALES	I	Standard deviation	5.88
FEMALES	II	Average	49.11
FEMALES	II	Standard deviation	6.47
FEMALES	III	Average	49.02
FEMALES	III	Standard deviation	6.62
FEMALES	IV	Average	48.77
FEMALES	IV	Standard deviation	7.08
FEMALES	V	Average	48.10
FEMALES	V	Standard deviation	7.53
FEMALES	VI	Average	47.40
FEMALES	VI	Standard deviation	7.91
FEMALES	No data recorded	Average	47.13
FEMALES	No data recorded	Standard deviation	8.65