| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 2 |
0.4%
|
| 6 | 6 | 1 |
0.2%
|
| 8 | 8 | 4 |
0.8%
|
| 9 | 9 | 17 |
3.4%
|
| 10 | 10 | 35 |
7%
|
| 11 | 11 | 18 |
3.6%
|
| 12 | 12 | 39 |
7.8%
|
| 13 | 13 | 37 |
7.4%
|
| 14 | 14 | 24 |
4.8%
|
| 15 | 15 | 17 |
3.4%
|
| 16 | 16 | 19 |
3.8%
|
| 17 | 17 | 14 |
2.8%
|
| 18 | 18 | 20 |
4%
|
| 19 | 19 | 41 |
8.2%
|
| 20 | 20 | 56 |
11.2%
|
| 21 | 21 | 18 |
3.6%
|
| 22 | 22 | 28 |
5.6%
|
| 23 | 23 | 27 |
5.4%
|
| 24 | 24 | 37 |
7.4%
|
| 25 | 25 | 19 |
3.8%
|
| 26 | 26 | 17 |
3.4%
|
| 27 | 27 | 4 |
0.8%
|
| 30 | 30 | 1 |
0.2%
|
| 35 | 35 | 1 |
0.2%
|
| 60 | 2 |
0.4%
|
|
| -5 | Missing; Not asked by the interviewer | 0 | |
| -4 | Not asked | 0 | |
| -3 | Not applicable; No studies | 277 | |
| -2 | No answer | 425 | |
| -1 | Don´t know | 0 |