| Value | Category | Cases | |
|---|---|---|---|
| 0 | Less than 1 year | 819 |
1%
|
| 1 | Completed 1 year | 2289 |
2.8%
|
| 2 | Completed 2 years | 5175 |
6.4%
|
| 3 | Completed 3 years | 6629 |
8.2%
|
| 4 | Completed 4 years | 6196 |
7.7%
|
| 5 | Completed 5 years | 9791 |
12.2%
|
| 6 | Completed 6 years | 6802 |
8.5%
|
| 7 | Completed 7 years | 5923 |
7.4%
|
| 8 | Completed 8 years | 4690 |
5.8%
|
| 9 | Completed 9 years or more | 32175 |
40%
|