| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 10 |
9.8%
|
| 0 | 8 |
7.8%
|
|
| 1 | 13 |
12.7%
|
|
| 2 | 16 |
15.7%
|
|
| 3 | 5 |
4.9%
|
|
| 4 | 3 |
2.9%
|
|
| 5 | 5 |
4.9%
|
|
| 6 | 2 |
2%
|
|
| 7 | 2 |
2%
|
|
| 9 | 1 |
1%
|
|
| 10 | 8 |
7.8%
|
|
| 11 | 1 |
1%
|
|
| 12 | 2 |
2%
|
|
| 13 | 3 |
2.9%
|
|
| 15 | 4 |
3.9%
|
|
| 18 | 1 |
1%
|
|
| 20 | 1 |
1%
|
|
| 24 | 1 |
1%
|
|
| 25 | 1 |
1%
|
|
| 26 | 1 |
1%
|
|
| 28 | 1 |
1%
|
|
| 34 | 2 |
2%
|
|
| 38 | 1 |
1%
|
|
| 39 | 1 |
1%
|
|
| 45 | 1 |
1%
|
|
| 60 | 1 |
1%
|
|
| 65 | 1 |
1%
|
|
| 67 | 1 |
1%
|
|
| 145 | 1 |
1%
|
|
| 150 | 1 |
1%
|
|
| 160 | 1 |
1%
|
|
| 180 | 1 |
1%
|
|
| 400 | 1 |
1%
|
|
| Sysmiss | 498 |