| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2%
|
| -7 | Never regiestered (spontaneous) | 0 |
0%
|
| 1 | One year or less | 4 |
2.7%
|
| 2 | 5 |
3.4%
|
|
| 3 | 8 |
5.4%
|
|
| 4 | 7 |
4.7%
|
|
| 5 | 10 |
6.7%
|
|
| 6 | 5 |
3.4%
|
|
| 7 | 5 |
3.4%
|
|
| 8 | 4 |
2.7%
|
|
| 9 | 9 |
6%
|
|
| 10 | 10 |
6.7%
|
|
| 11 | 1 |
0.7%
|
|
| 12 | 4 |
2.7%
|
|
| 13 | 1 |
0.7%
|
|
| 14 | 1 |
0.7%
|
|
| 15 | 8 |
5.4%
|
|
| 16 | 2 |
1.3%
|
|
| 17 | 1 |
0.7%
|
|
| 18 | 4 |
2.7%
|
|
| 19 | 3 |
2%
|
|
| 20 | 15 |
10.1%
|
|
| 21 | 3 |
2%
|
|
| 22 | 2 |
1.3%
|
|
| 23 | 1 |
0.7%
|
|
| 24 | 1 |
0.7%
|
|
| 25 | 2 |
1.3%
|
|
| 26 | 4 |
2.7%
|
|
| 28 | 4 |
2.7%
|
|
| 30 | 4 |
2.7%
|
|
| 32 | 1 |
0.7%
|
|
| 33 | 1 |
0.7%
|
|
| 35 | 3 |
2%
|
|
| 40 | 6 |
4%
|
|
| 45 | 1 |
0.7%
|
|
| 49 | 1 |
0.7%
|
|
| 50 | 4 |
2.7%
|
|
| 62 | 1 |
0.7%
|