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Part A - Short definition:
Part B - Detailed definition:
Refers to the age at last birthday before the reference date, that is, before May 10, 2011.
2011, 2006, 2001, 1996, 1991, 1986, 1981, 1976, 1971, 1966, 1961
Derived variable: Question 3
Range of values: single years 0 to 110
For more information, see Date of birth.