| Value | Category | Cases | |
|---|---|---|---|
| 0 | 151 |
16.3%
|
|
| 1 | Less than a month | 556 |
60.1%
|
| 2 | 1 month to less than 6 months | 133 |
14.4%
|
| 3 | 6 months to less than a year | 22 |
2.4%
|
| 4 | 1 - 2 years | 29 |
3.1%
|
| 5 | More than 2 years | 23 |
2.5%
|
| d | 6 |
0.6%
|
|
| r | 5 |
0.5%
|