| Value | Category | Cases | |
|---|---|---|---|
| 0 | 33 |
82.5%
|
|
| 2 | 1 |
2.5%
|
|
| 3 | 1 |
2.5%
|
|
| 5 | 1 |
2.5%
|
|
| 8 | 1 |
2.5%
|
|
| 10 | 2 |
5%
|
|
| 20 | 1 |
2.5%
|
|
| 77 | refuse | 0 |
0%
|
| 88 | dont know | 0 |
0%
|
| 99 | missing | 0 |
0%
|
| Sysmiss | 4930 |