| Value | Category | Cases | |
|---|---|---|---|
| 1 | one month or less | 604 |
85.3%
|
| 2 | 2 months | 33 |
4.7%
|
| 3 | 3 months | 26 |
3.7%
|
| 4 | 4 months | 10 |
1.4%
|
| 5 | 5 months | 2 |
0.3%
|
| 6 | 6 months | 3 |
0.4%
|
| 7 | 7 months and more | 30 |
4.2%
|