| Value | Category | Cases | |
|---|---|---|---|
| 0 | 435 |
68.8%
|
|
| 1 | 73 |
11.6%
|
|
| 2 | 52 |
8.2%
|
|
| 3 | 19 |
3%
|
|
| 4 | 22 |
3.5%
|
|
| 5 | 12 |
1.9%
|
|
| 6 | 1 |
0.2%
|
|
| 7 | 2 |
0.3%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 2 |
0.3%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| 24 | 1 |
0.2%
|
|
| 50 | 1 |
0.2%
|
|
| 77 | Don't know | 8 |
1.3%
|
| Sysmiss | 663 |