| Value | Category | Cases | |
|---|---|---|---|
| 1 | One to five | 254 |
85.8%
|
| 2 | Six to ten | 35 |
11.8%
|
| 3 | Eleven to fifteen | 4 |
1.4%
|
| 4 | More than fifteen | 3 |
1%
|
| 99 | Not specified | 0 |
0%
|
| Sysmiss | 3702 |