| Value | Category | Cases | |
|---|---|---|---|
| -99 | DK | 0 |
0%
|
| -88 | Missing | 0 |
0%
|
| -77 | NA | 8 |
4.3%
|
| 0 | 145 |
78.4%
|
|
| 8 | 1 |
0.5%
|
|
| 10 | 7 |
3.8%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 6 |
3.2%
|
|
| 16 | 3 |
1.6%
|
|
| 18 | 1 |
0.5%
|
|
| 20 | 5 |
2.7%
|
|
| 24 | 1 |
0.5%
|
|
| 25 | 1 |
0.5%
|
|
| 30 | 3 |
1.6%
|
|
| 999 | 3 |
1.6%
|
|
| Sysmiss | 106 |