| Value | Category | Cases | |
|---|---|---|---|
| 0 | 14 |
3.2%
|
|
| 1 | 19 |
4.3%
|
|
| 2 | 18 |
4.1%
|
|
| 3 | 11 |
2.5%
|
|
| 4 | 20 |
4.5%
|
|
| 5 | 25 |
5.7%
|
|
| 6 | 10 |
2.3%
|
|
| 7 | 4 |
0.9%
|
|
| 8 | 12 |
2.7%
|
|
| 9 | 2 |
0.5%
|
|
| 10 | 48 |
10.9%
|
|
| 12 | 6 |
1.4%
|
|
| 13 | 3 |
0.7%
|
|
| 14 | 3 |
0.7%
|
|
| 15 | 25 |
5.7%
|
|
| 16 | 6 |
1.4%
|
|
| 18 | 3 |
0.7%
|
|
| 20 | 124 |
28.2%
|
|
| 21 | 1 |
0.2%
|
|
| 22 | 1 |
0.2%
|
|
| 24 | 2 |
0.5%
|
|
| 25 | 9 |
2%
|
|
| 30 | 1 |
0.2%
|
|
| 40 | 20 |
4.5%
|
|
| 50 | 2 |
0.5%
|
|
| 77 | Don't know | 51 |
11.6%
|
| Sysmiss | 1608 |