| Value | Category | Cases | |
|---|---|---|---|
| 0 | 299 |
36.9%
|
|
| 1 | 174 |
21.5%
|
|
| 2 | 73 |
9%
|
|
| 3 | 35 |
4.3%
|
|
| 4 | 14 |
1.7%
|
|
| 5 | 11 |
1.4%
|
|
| 6 | 5 |
0.6%
|
|
| 7 | 1 |
0.1%
|
|
| 8 | 1 |
0.1%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 1 |
0.1%
|
|
| 12 | 2 |
0.2%
|
|
| 16 | 1 |
0.1%
|
|
| 20 | 1 |
0.1%
|
|
| 30 | 1 |
0.1%
|
|
| 50 | 3 |
0.4%
|
|
| 77 | Don't know | 188 |
23.2%
|
| Sysmiss | 4186 |