| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 2 | 1 |
0.8%
|
|
| 3 | 1 |
0.8%
|
|
| 4 | 1 |
0.8%
|
|
| 5 | 15 |
12.5%
|
|
| 6 | 1 |
0.8%
|
|
| 7 | 2 |
1.7%
|
|
| 8 | 6 |
5%
|
|
| 10 | 16 |
13.3%
|
|
| 11 | 1 |
0.8%
|
|
| 12 | 1 |
0.8%
|
|
| 15 | 12 |
10%
|
|
| 16 | 1 |
0.8%
|
|
| 20 | 12 |
10%
|
|
| 25 | 2 |
1.7%
|
|
| 30 | 13 |
10.8%
|
|
| 35 | 1 |
0.8%
|
|
| 40 | 1 |
0.8%
|
|
| 50 | 14 |
11.7%
|
|
| 60 | 4 |
3.3%
|
|
| 65 | 1 |
0.8%
|
|
| 75 | 1 |
0.8%
|
|
| 80 | 6 |
5%
|
|
| 100 | 6 |
5%
|
|
| 150 | 1 |
0.8%
|
|
| Sysmiss | 225 |