| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 362 |
92.1%
|
| 1 | One year or less | 0 |
0%
|
| 2 | 2 |
0.5%
|
|
| 3 | 2 |
0.5%
|
|
| 4 | 6 |
1.5%
|
|
| 6 | 2 |
0.5%
|
|
| 7 | 3 |
0.8%
|
|
| 8 | 1 |
0.3%
|
|
| 9 | 3 |
0.8%
|
|
| 10 | 3 |
0.8%
|
|
| 11 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| 16 | 1 |
0.3%
|
|
| 17 | 1 |
0.3%
|
|
| 18 | 2 |
0.5%
|
|
| 20 | 1 |
0.3%
|
|
| 23 | 1 |
0.3%
|
|
| 35 | 1 |
0.3%
|
|
| Sysmiss | 1602 |