| Value | Category | Cases | |
|---|---|---|---|
| 0 | nr | 0 |
0%
|
| 1 | more than sufficient | 59 |
2.3%
|
| 2 | about adequate | 941 |
36.8%
|
| 3 | insufficient | 1507 |
58.9%
|
| 4 | don't know | 49 |
1.9%
|
| 6 | 1 |
0%
|
|
| 9 | na | 0 |
0%
|
| Sysmiss | 443 |