| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 1 year | 316 |
7.9%
|
| 1 | Completed 1 year | 400 |
10.1%
|
| 2 | Completed 2 years | 555 |
14%
|
| 3 | Completed 3 years | 290 |
7.3%
|
| 4 | Completed 4 years | 198 |
5%
|
| 5 | Completed 5 years | 312 |
7.8%
|
| 6 | Completed 6 years | 125 |
3.1%
|
| 7 | Completed 7 years | 74 |
1.9%
|
| 8 | Completed 8 years | 222 |
5.6%
|
| 9 | Completed 9 years or more | 1485 |
37.3%
|