| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 1 |
0.3%
|
| 1 | 1 month | 13 |
4.4%
|
| 2 | 2 months | 58 |
19.8%
|
| 3 | 3 months | 95 |
32.4%
|
| 4 | 4 months | 51 |
17.4%
|
| 5 | 5 months | 19 |
6.5%
|
| 6 | 6 months | 45 |
15.4%
|
| 7 | 7 months | 5 |
1.7%
|
| 8 | 8 months | 1 |
0.3%
|
| 9 | 9 months | 0 |
0%
|
| 10 | 10 months | 1 |
0.3%
|
| 11 | 11 months | 1 |
0.3%
|
| 12 | 12 months | 3 |
1%
|
| Sysmiss | 249 |