There were 2,499,702 housing units with an average family size of 3.3.
Premiums would be based on income, family size and the particular features wanted.
And we're not talking population control, the forced limitation of family size.
Larger family size and later birth order are also associated.
Changes in family size are one of the few influences that may affect population over time.
The team then looked at family size and birth order in both groups.
Over the last 20 years, the average family size has dropped to around 4.5 children from 7.
The average family size in the city is 4.27 members.
Based on the average family size of 2.97 persons, summer population is at least 573.
In addition, as we have just seen, there was a growing control of family size.