| Value | Category | Cases | |
|---|---|---|---|
| 1 | one month or less | 554 |
91.6%
|
| 2 | 2 months | 16 |
2.6%
|
| 3 | 3 months | 14 |
2.3%
|
| 4 | 4 months | 0 |
0%
|
| 5 | 5 months | 2 |
0.3%
|
| 6 | 6 months | 0 |
0%
|
| 7 | 7 months and more | 19 |
3.1%
|