| Value | Category | Cases | |
|---|---|---|---|
| 0 | Zero months | 4506 |
72.9%
|
| 1 | 303 |
4.9%
|
|
| 2 | 277 |
4.5%
|
|
| 3 | 231 |
3.7%
|
|
| 4 | 176 |
2.8%
|
|
| 5 | 186 |
3%
|
|
| 6 | 201 |
3.3%
|
|
| 7 | 66 |
1.1%
|
|
| 8 | 100 |
1.6%
|
|
| 9 | 46 |
0.7%
|
|
| 10 | 53 |
0.9%
|
|
| 11 | 39 |
0.6%
|
|
| Sysmiss | 2996 |