| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than one full month | 14 |
6.5%
|
| 1 | 11 |
5.1%
|
|
| 2 | 24 |
11.2%
|
|
| 3 | 23 |
10.7%
|
|
| 4 | 21 |
9.8%
|
|
| 5 | 21 |
9.8%
|
|
| 6 | 19 |
8.8%
|
|
| 7 | 11 |
5.1%
|
|
| 8 | 19 |
8.8%
|
|
| 9 | 17 |
7.9%
|
|
| 10 | 23 |
10.7%
|
|
| 11 | 12 |
5.6%
|
|
| Sysmiss | 13750 |