| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 12 |
2.4%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 376 |
75.5%
|
|
| 1 | 8 |
1.6%
|
|
| 2 | 3 |
0.6%
|
|
| 4 | 1 |
0.2%
|
|
| 5 | 13 |
2.6%
|
|
| 10 | 29 |
5.8%
|
|
| 15 | 2 |
0.4%
|
|
| 20 | 14 |
2.8%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 11 |
2.2%
|
|
| 35 | 1 |
0.2%
|
|
| 40 | 3 |
0.6%
|
|
| 50 | 11 |
2.2%
|
|
| 60 | 4 |
0.8%
|
|
| 70 | 2 |
0.4%
|
|
| 80 | 3 |
0.6%
|
|
| 85 | 1 |
0.2%
|
|
| 90 | 2 |
0.4%
|
|
| 100 | 1 |
0.2%
|
|
| Sysmiss | 103 |