| Value | Category | Cases | |
|---|---|---|---|
| -8 | dk | 77 |
1.7%
|
| 0 | Less than a year | 1071 |
23%
|
| 1 | 482 |
10.3%
|
|
| 2 | 480 |
10.3%
|
|
| 3 | 309 |
6.6%
|
|
| 4 | 161 |
3.5%
|
|
| 5 | 212 |
4.5%
|
|
| 6 | 87 |
1.9%
|
|
| 7 | 57 |
1.2%
|
|
| 8 | 62 |
1.3%
|
|
| 9 | 17 |
0.4%
|
|
| 10 | 136 |
2.9%
|
|
| 11 | 6 |
0.1%
|
|
| 12 | 19 |
0.4%
|
|
| 13 | 6 |
0.1%
|
|
| 14 | 6 |
0.1%
|
|
| 15 | 51 |
1.1%
|
|
| 16 | 4 |
0.1%
|
|
| 17 | 1 |
0%
|
|
| 18 | 4 |
0.1%
|
|
| 20 | 42 |
0.9%
|
|
| 22 | 2 |
0%
|
|
| 23 | 4 |
0.1%
|
|
| 25 | 8 |
0.2%
|
|
| 28 | 3 |
0.1%
|
|
| 29 | 1 |
0%
|
|
| 30 | 12 |
0.3%
|
|
| 38 | 1 |
0%
|
|
| 40 | 3 |
0.1%
|
|
| 41 | 1 |
0%
|
|
| 46 | 1 |
0%
|
|
| 50 | 2 |
0%
|
|
| 88 | Do not know | 0 |
0%
|
| 98 | Never | 1337 |
28.7%
|