| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.2%
|
| 10 | 3 |
0.5%
|
|
| 15 | 4 |
0.7%
|
|
| 20 | 6 |
1%
|
|
| 25 | 8 |
1.4%
|
|
| 30 | 14 |
2.4%
|
|
| 35 | 3 |
0.5%
|
|
| 40 | 26 |
4.4%
|
|
| 45 | 2 |
0.3%
|
|
| 50 | 52 |
8.8%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 48 |
8.1%
|
|
| 65 | 7 |
1.2%
|
|
| 70 | 51 |
8.7%
|
|
| 75 | 38 |
6.5%
|
|
| 77 | 1 |
0.2%
|
|
| 78 | 1 |
0.2%
|
|
| 80 | 119 |
20.2%
|
|
| 85 | 43 |
7.3%
|
|
| 88 | 2 |
0.3%
|
|
| 90 | 66 |
11.2%
|
|
| 93 | 1 |
0.2%
|
|
| 95 | 14 |
2.4%
|
|
| 96 | 1 |
0.2%
|
|
| 98 | 2 |
0.3%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 74 |
12.6%
|
|
| Sysmiss | 843 |