| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
2.6%
|
| 3 | 2 |
0.7%
|
|
| 5 | 4 |
1.5%
|
|
| 8 | 1 |
0.4%
|
|
| 9 | 2 |
0.7%
|
|
| 10 | 35 |
13%
|
|
| 11 | 2 |
0.7%
|
|
| 12 | 5 |
1.9%
|
|
| 15 | 29 |
10.7%
|
|
| 16 | 2 |
0.7%
|
|
| 18 | 1 |
0.4%
|
|
| 20 | 26 |
9.6%
|
|
| 21 | 3 |
1.1%
|
|
| 22 | 4 |
1.5%
|
|
| 24 | 5 |
1.9%
|
|
| 25 | 29 |
10.7%
|
|
| 26 | 1 |
0.4%
|
|
| 27 | 1 |
0.4%
|
|
| 28 | 1 |
0.4%
|
|
| 29 | 1 |
0.4%
|
|
| 30 | 24 |
8.9%
|
|
| 31 | 2 |
0.7%
|
|
| 32 | 6 |
2.2%
|
|
| 33 | 4 |
1.5%
|
|
| 35 | 19 |
7%
|
|
| 36 | 3 |
1.1%
|
|
| 40 | 13 |
4.8%
|
|
| 42 | 2 |
0.7%
|
|
| 43 | 1 |
0.4%
|
|
| 45 | 9 |
3.3%
|
|
| 48 | 1 |
0.4%
|
|
| 50 | 10 |
3.7%
|
|
| 52 | 2 |
0.7%
|
|
| 55 | 3 |
1.1%
|
|
| 56 | 1 |
0.4%
|
|
| 60 | 5 |
1.9%
|
|
| 65 | 2 |
0.7%
|
|
| 70 | 1 |
0.4%
|
|
| 75 | 1 |
0.4%
|
|
| Sysmiss | 328 |