| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.4%
|
| 0 | 7 |
2.5%
|
|
| 2 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 4 |
1.4%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 5 |
1.8%
|
|
| 35 | 1 |
0.4%
|
|
| 40 | 4 |
1.4%
|
|
| 45 | 1 |
0.4%
|
|
| 50 | 15 |
5.3%
|
|
| 55 | 1 |
0.4%
|
|
| 60 | 16 |
5.6%
|
|
| 70 | 20 |
7%
|
|
| 71 | 1 |
0.4%
|
|
| 75 | 1 |
0.4%
|
|
| 80 | 27 |
9.5%
|
|
| 85 | 5 |
1.8%
|
|
| 90 | 16 |
5.6%
|
|
| 92 | 1 |
0.4%
|
|
| 95 | 1 |
0.4%
|
|
| 98 | 1 |
0.4%
|
|
| 100 | 153 |
53.9%
|
|
| Sysmiss | 741 |