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7
Population.
The Registrar General's figure of 67,500 is somewhat below
the local estimate, which for the mid year was taken as 72,000,
a figure arrived at on the assumption that the average population
per house was 5.
This average is higher than that found actually to exist at
the time the last census was taken by the L.C.C. of their Estate,
an increase which is expected when the age distribution of
the population is taken into consideration. In general the
average per house is maintained at a fairly constant level, a
rise due to births being balanced by the deaths and marriages.
In this population each, of these factors is abnormal. The
population of young adults is resulting in a high birth rate,
and also a low death rate, whilst the relative paucity of those at
marriageable age accounts for a low marriage rate. The
resultant of these opposing tactors causes the average population
per house to rise steadily. It is found that the average
per house on the older sections of the estate is higher than
in the newer portions.

The distribution of deaths during the year in the houses
erected prior to 1921, agrees closely with that holding for
England and Wales, namely, 32% of total deaths under 45.
and would, on this basis represent the deaths in a population
of 8,800, agreeing fairly with the 1921 census of 9,127. This
would indicate that for the past year there was no abnormal
influence affecting the death rate in this locality.
Accordingly, therefore, the 289 deaths of persons under 45
occurring in the Estate houses, should represent the total
population of some 77,000, of whom 55,400 will be under 45
and 21,600 over 45.
Corresponding to 289 deaths amongst persons under 45 in
a normally distributed population, there would be amongst those
of over 45, 614 deaths. Actually in the Estate houses there
occurred in this age group only 67 deaths; that is persons over
45 are only 10% represented on this Estate. The population