Household identifier
0 = 1 person sampled per household

sex - duplicate in supplement file
-8 = missing
1 = Man
2 = Woman

age - duplicate in supplement file
-8 = missing
-7 = not asked
80 = 80 or older

original household income labelled
-9 = could not be created

original education labelled
1 = Degree or higher degree
2 = Higher educational qualification below degree level
3 = A levels or Highers
4 = ONC/BTEC
5 = O level or GCSE equivalent (that is Grade A-C); O Grade or C
6 = GCSE grade D-G or CSE grade 2-5 or Standard Grade level 4-6
7 = Other qualifications (including foreign qualifications below
8 = No formal qualifications
98 = Refused
99 = Don't know

age left formal schooling
-8 = missing
0 = still in school
15 = 15 or less
21 = 21 or older

ethnicity
-9 = not possible to create
-8 = missing
1 = white
2 = black
3 = Indian/Pakistani/Bangladeshi
4 = other and mixed race

countrya / English region
-8 = missing
1 = North of England
2 = English Midlands
3 = East of England
4 = London and South East
5 = South & West of England
6 = Wales
7 = Scotland
8 = Northern Ireland