| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 69 |
12.5%
|
| 1 | 9 |
1.6%
|
|
| 2 | 4 |
0.7%
|
|
| 3 | 1 |
0.2%
|
|
| 5 | 7 |
1.3%
|
|
| 6 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 12 |
2.2%
|
|
| 15 | 3 |
0.5%
|
|
| 18 | 1 |
0.2%
|
|
| 20 | 51 |
9.3%
|
|
| 21 | 1 |
0.2%
|
|
| 25 | 12 |
2.2%
|
|
| 30 | 30 |
5.5%
|
|
| 33 | 2 |
0.4%
|
|
| 34 | 1 |
0.2%
|
|
| 37 | 1 |
0.2%
|
|
| 38 | 1 |
0.2%
|
|
| 39 | 1 |
0.2%
|
|
| 40 | 41 |
7.5%
|
|
| 45 | 5 |
0.9%
|
|
| 46 | 1 |
0.2%
|
|
| 48 | 1 |
0.2%
|
|
| 50 | 57 |
10.4%
|
|
| 51 | 1 |
0.2%
|
|
| 55 | 2 |
0.4%
|
|
| 58 | 1 |
0.2%
|
|
| 60 | 28 |
5.1%
|
|
| 61 | 1 |
0.2%
|
|
| 65 | 1 |
0.2%
|
|
| 70 | 3 |
0.5%
|
|
| 75 | 4 |
0.7%
|
|
| 80 | 9 |
1.6%
|
|
| 90 | 2 |
0.4%
|
|
| 95 | 1 |
0.2%
|
|
| 96 | 1 |
0.2%
|
|
| 97 | 1 |
0.2%
|
|
| 100 | 182 |
33.1%
|
|
| Sysmiss | 452 |