track type (slow, standard, fast)
1 = slow
2 = standard
3 = fast

A1/A2
1 = A1
2 = A2

0 = Stateless
1 = Africa
2 = Asia Pacific
3 = Eastern Europe
4 = Latin America and Carribean
5 = Western Europe and others

gender
1 = male
2 = female

educational background types
1 = primary or less
2 = religious
3 = lower secondary
4 = upper secondary
5 = bachelor
6 = master

educational bacground category
1 = no / primary education
2 = secondary education
3 = tertiary education

employment
0 = unemployed
1 = employed

Mothertongue Latin writing system
0 = L1 lws
1 = L1 no lws

mothertongue Indo-European
0 = no Indo-European L1
1 = Indo-European L1