| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1645 |
26.4%
|
|
| 1 | 1820 |
29.2%
|
|
| 2 | 1263 |
20.3%
|
|
| 3 | 789 |
12.7%
|
|
| 4 | 173 |
2.8%
|
|
| 5 | 193 |
3.1%
|
|
| 6 | 49 |
0.8%
|
|
| 7 | 259 |
4.2%
|
|
| 77 | Don't know | 41 |
0.7%
|
| Sysmiss | 33 |