| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 49 |
0.7%
|
| -8 | Refused | 13 |
0.2%
|
| -5 | Not Applicable | 23 |
0.3%
|
| -3 | Missing | 131 |
1.9%
|
| 0 | 6561 |
96.4%
|
|
| 3 | 3 |
0%
|
|
| 7 | 1 |
0%
|
|
| 12 | 1 |
0%
|
|
| 15 | 1 |
0%
|
|
| 17 | 1 |
0%
|
|
| 18 | 1 |
0%
|
|
| 20 | 4 |
0.1%
|
|
| 21 | 2 |
0%
|
|
| 23 | 1 |
0%
|
|
| 25 | 3 |
0%
|
|
| 26 | 1 |
0%
|
|
| 30 | 4 |
0.1%
|
|
| 32 | 1 |
0%
|
|
| 34 | 1 |
0%
|
|
| 38 | 1 |
0%
|
|
| 40 | 1 |
0%
|
|
| 45 | 1 |
0%
|
|
| 55 | 1 |
0%
|
|
| 60 | 3 |
0%
|
|
| Sysmiss | 487 |