1 = city 1
2 = city 2
3 = city 3
4 = city 4
5 = city 5
6 = city 6
7 = city 7
8 = city 8

1 = under 20
2 = 21-30
3 = 31-40
4 = 41-50
5 = over 50

employment status
1 = permanent
2 = casual

1 = not at all
2 = slight
3 = moderate
4 = great
5 = very great

1 = not at all
2 = slightly
3 = moderately
4 = very
5 = extremely

0 = no
1 = yes

length of service grp 3
1 = <= 2
2 = 3 - 5
3 = 6+

1 = 18 to 30
2 = 31 to 40
3 = 41 to 50
4 = 50+