| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 1 |
0.6%
|
| 1 | 21 |
12.2%
|
|
| 2 | 21 |
12.2%
|
|
| 3 | 10 |
5.8%
|
|
| 4 | 31 |
18%
|
|
| 5 | 11 |
6.4%
|
|
| 6 | 10 |
5.8%
|
|
| 7 | 3 |
1.7%
|
|
| 8 | 22 |
12.8%
|
|
| 9 | 9 |
5.2%
|
|
| 12 | 16 |
9.3%
|
|
| 13 | 4 |
2.3%
|
|
| 15 | 2 |
1.2%
|
|
| 16 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 21 | 2 |
1.2%
|
|
| 22 | 1 |
0.6%
|
|
| 24 | 1 |
0.6%
|
|
| 45 | 2 |
1.2%
|
|
| 60 | 2 |
1.2%
|
|
| 65 | 1 |
0.6%
|
|
| Sysmiss | 400 |