| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 7887 |
46.8%
|
| 0 | never | 8167 |
48.5%
|
| 1 | 140 |
0.8%
|
|
| 2 | 53 |
0.3%
|
|
| 3 | 58 |
0.3%
|
|
| 4 | 54 |
0.3%
|
|
| 5 | 249 |
1.5%
|
|
| 6 | 203 |
1.2%
|
|
| 7 | 37 |
0.2%
|
|
| 95 | case before variable implementation | 0 |
0%
|
| 9999995 | missing:impute | 0 |
0%
|
