| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 3 |
0.7%
|
| 0 | 290 |
65.3%
|
|
| 1 | 2 |
0.5%
|
|
| 2 | 3 |
0.7%
|
|
| 5 | 11 |
2.5%
|
|
| 8 | 4 |
0.9%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 18 |
4.1%
|
|
| 15 | 6 |
1.4%
|
|
| 17 | 1 |
0.2%
|
|
| 20 | 21 |
4.7%
|
|
| 25 | 9 |
2%
|
|
| 30 | 35 |
7.9%
|
|
| 35 | 1 |
0.2%
|
|
| 40 | 10 |
2.3%
|
|
| 45 | 2 |
0.5%
|
|
| 50 | 6 |
1.4%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 3 |
0.7%
|
|
| 65 | 2 |
0.5%
|
|
| 70 | 2 |
0.5%
|
|
| 75 | 1 |
0.2%
|
|
| 80 | 4 |
0.9%
|
|
| 85 | 1 |
0.2%
|
|
| 90 | 4 |
0.9%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 2 |
0.5%
|
|
| Sysmiss | 128 |