| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | One year or less | 0 |
0%
|
| 3 | 1 |
0.8%
|
|
| 8 | 1 |
0.8%
|
|
| 10 | 3 |
2.5%
|
|
| 12 | 1 |
0.8%
|
|
| 13 | 1 |
0.8%
|
|
| 15 | 7 |
5.8%
|
|
| 16 | 1 |
0.8%
|
|
| 17 | 2 |
1.7%
|
|
| 18 | 2 |
1.7%
|
|
| 19 | 2 |
1.7%
|
|
| 20 | 10 |
8.3%
|
|
| 21 | 2 |
1.7%
|
|
| 22 | 2 |
1.7%
|
|
| 24 | 2 |
1.7%
|
|
| 25 | 15 |
12.5%
|
|
| 26 | 1 |
0.8%
|
|
| 28 | 3 |
2.5%
|
|
| 29 | 1 |
0.8%
|
|
| 30 | 19 |
15.8%
|
|
| 32 | 1 |
0.8%
|
|
| 33 | 1 |
0.8%
|
|
| 35 | 6 |
5%
|
|
| 36 | 1 |
0.8%
|
|
| 37 | 3 |
2.5%
|
|
| 38 | 3 |
2.5%
|
|
| 39 | 1 |
0.8%
|
|
| 40 | 9 |
7.5%
|
|
| 41 | 1 |
0.8%
|
|
| 42 | 2 |
1.7%
|
|
| 43 | 1 |
0.8%
|
|
| 44 | 1 |
0.8%
|
|
| 45 | 6 |
5%
|
|
| 47 | 1 |
0.8%
|
|
| 48 | 1 |
0.8%
|
|
| 50 | 3 |
2.5%
|
|
| 52 | 1 |
0.8%
|
|
| 55 | 1 |
0.8%
|
|
| 57 | 1 |
0.8%
|