| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1898 |
25.8%
|
|
| 1 | 1347 |
18.3%
|
|
| 2 | 1543 |
21%
|
|
| 3 | 999 |
13.6%
|
|
| 4 | 407 |
5.5%
|
|
| 5 | 309 |
4.2%
|
|
| 6 | 142 |
1.9%
|
|
| 7 | 604 |
8.2%
|
|
| 77 | Don't know | 116 |
1.6%
|
| Sysmiss | 1 |