| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than one full month | 9 |
1.3%
|
| 1 | 10 |
1.4%
|
|
| 2 | 41 |
5.7%
|
|
| 3 | 64 |
8.9%
|
|
| 4 | 83 |
11.6%
|
|
| 5 | 34 |
4.7%
|
|
| 6 | 150 |
20.9%
|
|
| 7 | 14 |
2%
|
|
| 8 | 55 |
7.7%
|
|
| 9 | 37 |
5.2%
|
|
| 10 | 69 |
9.6%
|
|
| 11 | 13 |
1.8%
|
|
| 12 | 137 |
19.1%
|
|
| Sysmiss | 13249 |