| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.3%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 1 | One year or less | 4 |
5.1%
|
| 2 | 8 |
10.3%
|
|
| 3 | 7 |
9%
|
|
| 4 | 3 |
3.8%
|
|
| 5 | 8 |
10.3%
|
|
| 6 | 7 |
9%
|
|
| 7 | 4 |
5.1%
|
|
| 8 | 1 |
1.3%
|
|
| 9 | 3 |
3.8%
|
|
| 10 | 9 |
11.5%
|
|
| 11 | 2 |
2.6%
|
|
| 12 | 5 |
6.4%
|
|
| 13 | 2 |
2.6%
|
|
| 14 | 1 |
1.3%
|
|
| 15 | 3 |
3.8%
|
|
| 18 | 1 |
1.3%
|
|
| 20 | 4 |
5.1%
|
|
| 21 | 1 |
1.3%
|
|
| 23 | 1 |
1.3%
|
|
| 26 | 1 |
1.3%
|
|
| 30 | 1 |
1.3%
|
|
| 31 | 1 |
1.3%
|
|
| Sysmiss | 523 |