Gender of Respondents
0 = Male
1 = Female

Political Orientation
1 = Far left
2 = Left
3 = Central
4 = Right
5 = Far right

Social Class
1 = Lower class
2 = Working class
3 = Lower middle class
4 = Middle class
5 = Upper middle class
6 = Upper class

1 = Less than 20
2 = 20-29
3 = 30-39
4 = 40-49
5 = 50-59
6 = 60-69
7 = 70-79
8 = 80-89
9 = More than 90