| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 40 |
24.8%
|
| 1 | One hour or less | 0 |
0%
|
| 10 | 9 |
5.6%
|
|
| 11 | 1 |
0.6%
|
|
| 12 | 7 |
4.3%
|
|
| 15 | 3 |
1.9%
|
|
| 16 | 4 |
2.5%
|
|
| 18 | 1 |
0.6%
|
|
| 19 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 22 | 1 |
0.6%
|
|
| 24 | 1 |
0.6%
|
|
| 25 | 3 |
1.9%
|
|
| 29 | 1 |
0.6%
|
|
| 30 | 14 |
8.7%
|
|
| 32 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 36 | 5 |
3.1%
|
|
| 40 | 12 |
7.5%
|
|
| 45 | 1 |
0.6%
|
|
| 48 | 6 |
3.7%
|
|
| 50 | 5 |
3.1%
|
|
| 56 | 1 |
0.6%
|
|
| 60 | 2 |
1.2%
|
|
| 72 | 1 |
0.6%
|
|
| 75 | 2 |
1.2%
|
|
| 80 | 2 |
1.2%
|
|
| 90 | 1 |
0.6%
|
|
| 100 | 28 |
17.4%
|
|
| 120 | 6 |
3.7%
|
|
| Sysmiss | 192 |