| Value | Category | Cases | |
|---|---|---|---|
| 11 | 1 |
1.5%
|
|
| 12 | 7 |
10.8%
|
|
| 13 | 1 |
1.5%
|
|
| 14 | 3 |
4.6%
|
|
| 15 | 6 |
9.2%
|
|
| 16 | 9 |
13.8%
|
|
| 17 | 3 |
4.6%
|
|
| 18 | 1 |
1.5%
|
|
| 19 | 2 |
3.1%
|
|
| 20 | 6 |
9.2%
|
|
| 21 | 1 |
1.5%
|
|
| 22 | 1 |
1.5%
|
|
| 23 | 2 |
3.1%
|
|
| 25 | 8 |
12.3%
|
|
| 29 | 1 |
1.5%
|
|
| 30 | 2 |
3.1%
|
|
| 38 | 1 |
1.5%
|
|
| 50 | 1 |
1.5%
|
|
| 70 | 1 |
1.5%
|
|
| 777 | Don't know | 3 |
4.6%
|
| 999 | Don't know | 5 |
7.7%
|
| Sysmiss | 1216 |