| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.6%
|
| 2 | 2 |
1.2%
|
|
| 3 | 2 |
1.2%
|
|
| 4 | 2 |
1.2%
|
|
| 5 | 1 |
0.6%
|
|
| 6 | 2 |
1.2%
|
|
| 7 | 13 |
8%
|
|
| 10 | 6 |
3.7%
|
|
| 14 | 1 |
0.6%
|
|
| 15 | 15 |
9.2%
|
|
| 16 | 1 |
0.6%
|
|
| 18 | 1 |
0.6%
|
|
| 20 | 6 |
3.7%
|
|
| 21 | 2 |
1.2%
|
|
| 22 | 1 |
0.6%
|
|
| 25 | 10 |
6.1%
|
|
| 26 | 3 |
1.8%
|
|
| 28 | 1 |
0.6%
|
|
| 30 | 35 |
21.5%
|
|
| 35 | 7 |
4.3%
|
|
| 40 | 5 |
3.1%
|
|
| 45 | 14 |
8.6%
|
|
| 50 | 1 |
0.6%
|
|
| 60 | 17 |
10.4%
|
|
| 90 | 7 |
4.3%
|
|
| 120 | 3 |
1.8%
|
|
| 180 | 4 |
2.5%
|
|
| Sysmiss | 1269 |