| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 year | 1824 |
45.5%
|
| 2 | 1year | 469 |
11.7%
|
| 3 | 2years | 411 |
10.2%
|
| 4 | 3 years | 275 |
6.9%
|
| 5 | 4 years | 180 |
4.5%
|
| 6 | 5 years | 203 |
5.1%
|
| 7 | 6 years | 88 |
2.2%
|
| 8 | 7 years | 88 |
2.2%
|
| 9 | 8 years | 67 |
1.7%
|
| 10 | 9 years | 55 |
1.4%
|
| 11 | 10 years and above | 311 |
7.8%
|
| 99 | Not specified | 41 |
1%
|