| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 257 |
7.5%
|
| 0 | 1835 |
53.2%
|
|
| 5 | 3 |
0.1%
|
|
| 10 | 32 |
0.9%
|
|
| 15 | 12 |
0.3%
|
|
| 20 | 43 |
1.2%
|
|
| 25 | 29 |
0.8%
|
|
| 30 | 109 |
3.2%
|
|
| 32 | 1 |
0%
|
|
| 35 | 28 |
0.8%
|
|
| 36 | 1 |
0%
|
|
| 38 | 1 |
0%
|
|
| 40 | 115 |
3.3%
|
|
| 45 | 7 |
0.2%
|
|
| 50 | 181 |
5.2%
|
|
| 53 | 1 |
0%
|
|
| 55 | 5 |
0.1%
|
|
| 60 | 115 |
3.3%
|
|
| 63 | 1 |
0%
|
|
| 65 | 25 |
0.7%
|
|
| 70 | 190 |
5.5%
|
|
| 75 | 72 |
2.1%
|
|
| 80 | 134 |
3.9%
|
|
| 85 | 8 |
0.2%
|
|
| 90 | 13 |
0.4%
|
|
| 100 | 230 |
6.7%
|
|
| Sysmiss | 15209 |