| Value | Category | Cases | |
|---|---|---|---|
| 0 | 275 |
70.5%
|
|
| 1 | 8 |
2.1%
|
|
| 2 | 8 |
2.1%
|
|
| 3 | 1 |
0.3%
|
|
| 5 | 2 |
0.5%
|
|
| 6 | 5 |
1.3%
|
|
| 8 | 2 |
0.5%
|
|
| 9 | 1 |
0.3%
|
|
| 12 | 3 |
0.8%
|
|
| 13 | 1 |
0.3%
|
|
| 18 | 1 |
0.3%
|
|
| 19 | 1 |
0.3%
|
|
| 24 | 2 |
0.5%
|
|
| 50 | 34 |
8.7%
|
|
| 77 | Don't know | 46 |
11.8%
|
| Sysmiss | 2143 |