| Value | Category | Cases | |
|---|---|---|---|
| 7 | 7 | 2 |
0.1%
|
| 8 | 8 | 10 |
0.7%
|
| 9 | 9 | 19 |
1.3%
|
| 10 | 10 | 25 |
1.7%
|
| 11 | 11 | 27 |
1.8%
|
| 12 | 12 | 75 |
5%
|
| 13 | 13 | 117 |
7.8%
|
| 14 | 14 | 127 |
8.5%
|
| 15 | 15 | 164 |
11%
|
| 16 | 16 | 235 |
15.7%
|
| 17 | 17 | 204 |
13.6%
|
| 18 | 18 | 181 |
12.1%
|
| 19 | 19 | 104 |
7%
|
| 20 | 20 | 56 |
3.7%
|
| 21 | 21 | 27 |
1.8%
|
| 22 | 22 | 42 |
2.8%
|
| 23 | 23 | 36 |
2.4%
|
| 24 | 24 | 24 |
1.6%
|
| 25 | 25 | 4 |
0.3%
|
| 26 | 26 | 5 |
0.3%
|
| 27 | 27 | 2 |
0.1%
|
| 28 | 28 | 1 |
0.1%
|
| 32 | 32 | 1 |
0.1%
|
| 33 | 33 | 1 |
0.1%
|
| 36 | 36 | 3 |
0.2%
|
| 37 | 37 | 2 |
0.1%
|
| 46 | 46 | 1 |
0.1%
|
| -5 | Missing; Not asked by the interviewer | 0 | |
| -4 | Not asked | 0 | |
| -3 | Not applicable; No studies | 389 | |
| -2 | No answer | 71 | |
| -1 | Don´t know | 36 |