| Value | Category | Cases | |
|---|---|---|---|
| 0 | During infancy | 2 |
0%
|
| 1 | 2 |
0%
|
|
| 2 | 4 |
0.1%
|
|
| 3 | 14 |
0.3%
|
|
| 4 | 20 |
0.4%
|
|
| 5 | 193 |
3.6%
|
|
| 6 | 547 |
10.2%
|
|
| 7 | 942 |
17.5%
|
|
| 8 | 1102 |
20.5%
|
|
| 9 | 968 |
18%
|
|
| 10 | 868 |
16.1%
|
|
| 11 | 217 |
4%
|
|
| 12 | 250 |
4.6%
|
|
| 13 | 110 |
2%
|
|
| 14 | 26 |
0.5%
|
|
| 15 | 9 |
0.2%
|
|
| 25 | 1 |
0%
|
|
| 30 | 1 |
0%
|
|
| 97 | Inconsistent | 0 |
0%
|
| 98 | DK/Don't remember/Not sure | 38 |
0.7%
|
| 99 | Missing | 69 |
1.3%
|
| Sysmiss | 456 |