| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 1 year | 660 |
5.1%
|
| 1 | Completed 1 year | 1102 |
8.4%
|
| 2 | Completed 2 years | 1482 |
11.3%
|
| 3 | Completed 3 years | 1109 |
8.5%
|
| 4 | Completed 4 years | 1053 |
8.1%
|
| 5 | Completed 5 years | 966 |
7.4%
|
| 6 | Completed 6 years | 589 |
4.5%
|
| 7 | Completed 7 years | 355 |
2.7%
|
| 8 | Completed 8 years | 328 |
2.5%
|
| 9 | Completed 9 years or more | 5415 |
41.5%
|