-3 = (-3) Missing
-2 = (-2) Don't know
-1 = (-1) Refused
1 = (1) Approve STRONGLY
2 = (2) Approve SOMEWHAT
3 = (3) Disapprove SOMEWHAT
4 = (4) Disapprove STRONGLY
99 = (99) Coding error

-1 = (-1) Coding error
1 = (1) Approve STRONGLY
2 = (2) Approve SOMEWHAT
3 = (3) Disapprove SOMEWHAT
4 = (4) Disapprove STRONGLY
97 = (97) Refused
98 = (98) Don't know
99 = (99) Missing