| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 43 |
9.1%
|
| 1 | One hour or less | 7 |
1.5%
|
| 2 | 3 |
0.6%
|
|
| 3 | 3 |
0.6%
|
|
| 4 | 8 |
1.7%
|
|
| 5 | 12 |
2.5%
|
|
| 6 | 5 |
1.1%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 25 |
5.3%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 25 |
5.3%
|
|
| 12 | 13 |
2.7%
|
|
| 14 | 3 |
0.6%
|
|
| 15 | 10 |
2.1%
|
|
| 16 | 12 |
2.5%
|
|
| 19 | 1 |
0.2%
|
|
| 20 | 34 |
7.2%
|
|
| 21 | 1 |
0.2%
|
|
| 22 | 1 |
0.2%
|
|
| 23 | 1 |
0.2%
|
|
| 24 | 11 |
2.3%
|
|
| 25 | 10 |
2.1%
|
|
| 30 | 30 |
6.3%
|
|
| 32 | 4 |
0.8%
|
|
| 34 | 3 |
0.6%
|
|
| 35 | 7 |
1.5%
|
|
| 36 | 3 |
0.6%
|
|
| 40 | 31 |
6.5%
|
|
| 42 | 2 |
0.4%
|
|
| 45 | 6 |
1.3%
|
|
| 48 | 8 |
1.7%
|
|
| 50 | 9 |
1.9%
|
|
| 55 | 10 |
2.1%
|
|
| 59 | 1 |
0.2%
|
|
| 60 | 14 |
2.9%
|
|
| 62 | 1 |
0.2%
|
|
| 64 | 3 |
0.6%
|
|
| 65 | 1 |
0.2%
|
|
| 70 | 4 |
0.8%
|
|
| 72 | 10 |
2.1%
|
|
| 75 | 1 |
0.2%
|
|
| 78 | 2 |
0.4%
|
|
| 80 | 15 |
3.2%
|
|
| 87 | 1 |
0.2%
|
|
| 89 | 1 |
0.2%
|
|
| 90 | 10 |
2.1%
|
|
| 97 | 1 |
0.2%
|
|
| 98 | 1 |
0.2%
|
|
| 100 | 13 |
2.7%
|
|
| 105 | 1 |
0.2%
|
|
| 110 | 6 |
1.3%
|
|
| 115 | 1 |
0.2%
|
|
| 120 | 31 |
6.5%
|
|
| 124 | 1 |
0.2%
|
|
| 125 | 6 |
1.3%
|
|
| 144 | 1 |
0.2%
|
|
| 160 | 1 |
0.2%
|
|
| 200 | 1 |
0.2%
|
|
| 240 | 1 |
0.2%
|
|
| 530 | 1 |
0.2%
|
|
| 650 | 1 |
0.2%
|
|
| 700 | 1 |
0.2%
|
|
| Sysmiss | 444 |