| Value | Category | Cases | |
|---|---|---|---|
| 12 | 12 | 8 |
0.8%
|
| 13 | 13 | 5 |
0.5%
|
| 14 | 14 | 20 |
1.9%
|
| 15 | 15 | 102 |
9.8%
|
| 16 | 16 | 50 |
4.8%
|
| 17 | 17 | 40 |
3.8%
|
| 18 | 18 | 428 |
41.1%
|
| 19 | 19 | 44 |
4.2%
|
| 20 | 20 | 121 |
11.6%
|
| 21 | 21 | 27 |
2.6%
|
| 22 | 22 | 121 |
11.6%
|
| 23 | 23 | 41 |
3.9%
|
| 24 | 24 | 17 |
1.6%
|
| 25 | 25 | 6 |
0.6%
|
| 26 | 26 | 4 |
0.4%
|
| 27 | 27 | 3 |
0.3%
|
| 28 | 28 | 1 |
0.1%
|
| 30 | 30 | 3 |
0.3%
|
| 54 | 54 | 1 |
0.1%
|
| -4 | Not asked | 0 | |
| -2 | NA | 12 | |
| -1 | DK | 0 |