| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 1year | 1667 |
58.2%
|
| 1 | 1Year | 457 |
16%
|
| 2 | 2Years | 204 |
7.1%
|
| 3 | 3Years | 94 |
3.3%
|
| 4 | 4Years | 75 |
2.6%
|
| 5 | 5Years | 65 |
2.3%
|
| 6 | 6Years | 50 |
1.7%
|
| 7 | 7Years | 32 |
1.1%
|
| 8 | 8Years | 36 |
1.3%
|
| 9 | 9Years | 23 |
0.8%
|
| 10 | 10-45Years | 139 |
4.9%
|
| 11 | Not specified | 21 |
0.7%
|