| Value | Category | Cases | |
|---|---|---|---|
| 1 | less than or equal to 6 months | 945 |
0.6%
|
| 2 | more than 6 months but less than or equal to 1 year- | 3028 |
1.8%
|
| 3 | more than 1 year but less than or equal to 2 years | 7282 |
4.4%
|
| 4 | more than 2 years but less than or equal to 3 years | 10970 |
6.7%
|
| 5 | more than three years | 142298 |
86.5%
|
| Sysmiss | 253636 |