Date of birth

Part A - Short definition:

Not applicable

Part B - Detailed definition:

Refers to the day, month and year of birth.

Census years:

2011, 2006, 2001, 1996, 1991, 1986, 1981, 1976,¹ 1971¹

Reported for:

Total population

Question number(s):

Direct variable: Question 3

Responses:

May 10, 1901 to May 9, 2011

Remarks:

In 1966 and 1961, respondents were asked to state their age in completed years as of their last birthday before the census date. In 1961, published data for single years of age were graduated (or smoothed) within each five-year age group to counteract the tendency towards 'heaping' at certain specific ages. In 1966, this was not done, and the published tables represent the date as reported.

In 1991, 1986 and 1981, the day and month of birth were not retained for dissemination.

---

Note:

1. In 1976 and 1971, the question on date of birth was answered in groups of months: January to May or June to December.