| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 to 18 months | 589 |
13.3%
|
| 2 | 19 to 24 months | 383 |
8.6%
|
| 3 | 25 to 36 months | 471 |
10.6%
|
| 4 | 6 to 12 months | 789 |
17.8%
|
| 5 | Less than 6 months | 596 |
13.4%
|
| 6 | More than 3 years | 1616 |
36.4%
|