country code
9901 = France
9902 = United Kingdom
9903 = West Germany
9904 = East Germany
9905 = Austria
9906 = Italy
9907 = Spain
9908 = Portugal
9909 = Netherlands
9910 = Belgium
9911 = Denmark
9913 = Sweden
9914 = Finland
9915 = Iceland
9916 = Northern Ireland
9917 = Ireland
9918 = Estonia
9919 = Latvia
9920 = Lithuania
9921 = Poland
9922 = Czechia
9923 = Slovakia
9924 = Hungary
9925 = Romania
9926 = Bulgaria
9927 = Croatia
9928 = Greece
9929 = Russia
9932 = Malta
9933 = Luxembourg
9934 = Slovenia
9935 = Ukraine
9936 = Belarus

claim state benefits
-4 = question not asked
-2 = na
-1 = dk
1 = never
10 = always

sex respondent
-2 = na'
-1 = dk
1 = male
2 = female

year of birth
-2 = na
-1 = dk

-4 = question not asked
-3 = nap
-2 = na
-1 = dk
1 = inadequate education
2 = compl compulsory education
3 = (compl) elementary educ+basic voc qualification
4 = 2nd, interm vocational qualification
5 = 2nd, interm general qualification
6 = full 2nd maturity level certificate
7 = higher educ- lower-level 3d certificate
8 = higher educ- upper-level 3d certificate