| Value | Category | Cases | |
|---|---|---|---|
| -3 | INAP; No spouse | 252 |
16.8%
|
| -2 | No answer | 51 |
3.4%
|
| -1 | Don't know | 7 |
0.5%
|
| 1 | Lower | 911 |
60.7%
|
| 2 | Middle | 156 |
10.4%
|
| 3 | Higher | 123 |
8.2%
|