0 = male
1 = female

1 = <=29
2 = 30-39
3 = >=40

1 = bachelor or below
2 = master or above

1 = direct
2 = indirect
3 = mixed

1 = positive
2 = neutral I
3 = neutral II
4 = positive

1 = non-interest
2 = personal interest
3 = public interest
4 = personal & public interest
5 = public & personal interest

1 = positive
2 = neutral I
3 = neutral II
4 = negative