| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
0.5%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | One year or less | 48 |
8.3%
|
| 2 | 60 |
10.4%
|
|
| 3 | 53 |
9.2%
|
|
| 4 | 32 |
5.6%
|
|
| 5 | 38 |
6.6%
|
|
| 6 | 43 |
7.5%
|
|
| 7 | 32 |
5.6%
|
|
| 8 | 38 |
6.6%
|
|
| 9 | 25 |
4.3%
|
|
| 10 | 31 |
5.4%
|
|
| 11 | 17 |
3%
|
|
| 12 | 19 |
3.3%
|
|
| 13 | 18 |
3.1%
|
|
| 14 | 12 |
2.1%
|
|
| 15 | 18 |
3.1%
|
|
| 16 | 5 |
0.9%
|
|
| 17 | 8 |
1.4%
|
|
| 18 | 8 |
1.4%
|
|
| 19 | 11 |
1.9%
|
|
| 20 | 17 |
3%
|
|
| 21 | 6 |
1%
|
|
| 22 | 13 |
2.3%
|
|
| 23 | 2 |
0.3%
|
|
| 24 | 2 |
0.3%
|
|
| 25 | 3 |
0.5%
|
|
| 26 | 1 |
0.2%
|
|
| 27 | 1 |
0.2%
|
|
| 29 | 2 |
0.3%
|
|
| 30 | 2 |
0.3%
|
|
| 32 | 1 |
0.2%
|
|
| 34 | 1 |
0.2%
|
|
| 35 | 1 |
0.2%
|
|
| 37 | 1 |
0.2%
|
|
| 50 | 1 |
0.2%
|
|
| 56 | 1 |
0.2%
|
|
| 64 | 1 |
0.2%
|
|
| Sysmiss | 6 |