1 = Male
2 = Female

1 = Single
2 = Married

1 = Lower
2 = Middle
3 = Upper

1 = Medicine and Natural Sciences
2 = Mathematics and Engineering
3 = Social and human Sciences
4 = Literature
5 = Arts
6 = Technology Sciences
7 = sport
8 = languges

1 = first year
2 = Second Year
3 = third year
4 = masrer1
5 = master2
6 = doctorate