| Value | Category | Cases | |
|---|---|---|---|
| 1 | 25 to 30 | 677 |
18.7%
|
| 2 | 31 to 40 | 339 |
9.4%
|
| 3 | 41 to 50 | 159 |
4.4%
|
| 4 | 51 to 60 | 78 |
2.2%
|
| 5 | 61 to 70 | 61 |
1.7%
|
| 6 | 71 to 80 | 35 |
1%
|
| 7 | More than 80 | 178 |
4.9%
|
| 8 | I don't know | 2097 |
57.9%
|
| Sysmiss | 116 |