| Value | Category | Cases | |
|---|---|---|---|
| 13 | 2 |
0.1%
|
|
| 14 | 14 |
1%
|
|
| 15 | 47 |
3.5%
|
|
| 16 | 134 |
10%
|
|
| 17 | 227 |
16.9%
|
|
| 18 | 280 |
20.9%
|
|
| 19 | 207 |
15.4%
|
|
| 20 | 139 |
10.4%
|
|
| 21 | 102 |
7.6%
|
|
| 22 | 87 |
6.5%
|
|
| 23 | 52 |
3.9%
|
|
| 24 | 27 |
2%
|
|
| 25 | 8 |
0.6%
|
|
| 26 | 10 |
0.7%
|
|
| 27 | 2 |
0.1%
|
|
| 88 | Don't know | 0 |
0%
|
| 99 | Missing | 2 |
0.1%
|
| Sysmiss | 528 |