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. Author manuscript; available in PMC: 2014 Jan 28.
Published in final edited form as: Int J Behav Dev. 2012 May 31;36(4):247–257. doi: 10.1177/0165025412442870

Table 1.

Age of participants across survey years

Age of birth cohort
Wave of survey Year of survey 1982 1983 1984
1 1997 14 13 12
2 1998 15 14 13
3 1999 16 15 14
4 2000 17 16 15
5 2001 18 17 16
6 2002 19 18 17
7 2003 20 19 18
8 2004 21 20 19
9 2005 22 21 20
10 2006 23 22 21
11 2007 24 23 22