| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than one year | 0 |
0%
|
| 1 | 1 |
4.5%
|
|
| 2 | 2 |
9.1%
|
|
| 3 | 3 |
13.6%
|
|
| 5 | 4 |
18.2%
|
|
| 6 | 1 |
4.5%
|
|
| 8 | 3 |
13.6%
|
|
| 9 | 1 |
4.5%
|
|
| 10 | 3 |
13.6%
|
|
| 11 | 1 |
4.5%
|
|
| 20 | 1 |
4.5%
|
|
| 26 | 1 |
4.5%
|
|
| 29 | 1 |
4.5%
|
|
| Sysmiss | 2211 |