| Value | Category | Cases | |
|---|---|---|---|
| -9 | NIU (not in universe) | 493 |
75.4%
|
| 1 | 26 |
4%
|
|
| 2 | 27 |
4.1%
|
|
| 3 | 19 |
2.9%
|
|
| 4 | 14 |
2.1%
|
|
| 5 | 8 |
1.2%
|
|
| 6 | 1 |
0.2%
|
|
| 9999995 | missing:impute | 66 |
10.1%
|