| Value | Category | Cases | |
|---|---|---|---|
| 1 | Did not attend | 159 |
19%
|
| 2 | Less than 1 year | 35 |
4.2%
|
| 3 | 1 year | 211 |
25.2%
|
| 4 | 2 years | 203 |
24.3%
|
| 5 | 3 years | 128 |
15.3%
|
| 6 | 4 years or more | 100 |
12%
|
| Sysmiss | 164 |