| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 50 |
0.8%
|
| -8 | Refused | 11 |
0.2%
|
| -5 | Not Applicable | 25 |
0.4%
|
| -3 | Missing | 136 |
2.1%
|
| 0 | 6200 |
96%
|
|
| 3 | 3 |
0%
|
|
| 7 | 1 |
0%
|
|
| 10 | 2 |
0%
|
|
| 15 | 1 |
0%
|
|
| 20 | 1 |
0%
|
|
| 33 | 1 |
0%
|
|
| 35 | 1 |
0%
|
|
| 38 | 1 |
0%
|
|
| 40 | 6 |
0.1%
|
|
| 49 | 2 |
0%
|
|
| 50 | 2 |
0%
|
|
| 55 | 1 |
0%
|
|
| 90 | 2 |
0%
|
|
| 100 | 1 |
0%
|
|
| 150 | 1 |
0%
|
|
| 170 | 1 |
0%
|
|
| 200 | 4 |
0.1%
|
|
| 250 | 1 |
0%
|
|
| 300 | 3 |
0%
|
|
| 350 | 1 |
0%
|
|
| 5700 | 1 |
0%
|
|
| Sysmiss | 837 |