| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
0.3%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 1 | One year or less | 44 |
7.5%
|
| 2 | 34 |
5.8%
|
|
| 3 | 51 |
8.6%
|
|
| 4 | 42 |
7.1%
|
|
| 5 | 63 |
10.7%
|
|
| 6 | 45 |
7.6%
|
|
| 7 | 25 |
4.2%
|
|
| 8 | 37 |
6.3%
|
|
| 9 | 27 |
4.6%
|
|
| 10 | 50 |
8.5%
|
|
| 11 | 11 |
1.9%
|
|
| 12 | 20 |
3.4%
|
|
| 13 | 13 |
2.2%
|
|
| 14 | 20 |
3.4%
|
|
| 15 | 23 |
3.9%
|
|
| 16 | 9 |
1.5%
|
|
| 17 | 6 |
1%
|
|
| 18 | 18 |
3.1%
|
|
| 19 | 6 |
1%
|
|
| 20 | 18 |
3.1%
|
|
| 22 | 5 |
0.8%
|
|
| 23 | 2 |
0.3%
|
|
| 24 | 2 |
0.3%
|
|
| 25 | 2 |
0.3%
|
|
| 26 | 1 |
0.2%
|
|
| 28 | 4 |
0.7%
|
|
| 30 | 2 |
0.3%
|
|
| 32 | 2 |
0.3%
|
|
| 35 | 1 |
0.2%
|
|
| 37 | 1 |
0.2%
|
|
| 40 | 1 |
0.2%
|
|
| 42 | 1 |
0.2%
|
|
| 50 | 2 |
0.3%
|
|
| Sysmiss | 11 |