See http://www.parliament.sa.gov.au/pp/html/pastprem.shtm until someone copies the dates from there
... 2.45 and the average family size is 3.00. In the town the population is spread out with 13.8% under the age of 18, 34.0% from 18 to 24, 17.6% from 25 to 44, 20.5% from 45 ...