| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
3.3%
|
| 1 | One year or less | 0 |
0%
|
| 2 | 1 |
0.7%
|
|
| 3 | 1 |
0.7%
|
|
| 4 | 1 |
0.7%
|
|
| 5 | 5 |
3.3%
|
|
| 7 | 2 |
1.3%
|
|
| 8 | 3 |
2%
|
|
| 9 | 1 |
0.7%
|
|
| 10 | 21 |
14%
|
|
| 12 | 1 |
0.7%
|
|
| 13 | 2 |
1.3%
|
|
| 14 | 2 |
1.3%
|
|
| 15 | 3 |
2%
|
|
| 16 | 1 |
0.7%
|
|
| 17 | 1 |
0.7%
|
|
| 18 | 1 |
0.7%
|
|
| 20 | 16 |
10.7%
|
|
| 22 | 1 |
0.7%
|
|
| 23 | 1 |
0.7%
|
|
| 24 | 3 |
2%
|
|
| 25 | 15 |
10%
|
|
| 26 | 2 |
1.3%
|
|
| 27 | 3 |
2%
|
|
| 28 | 1 |
0.7%
|
|
| 30 | 19 |
12.7%
|
|
| 32 | 1 |
0.7%
|
|
| 33 | 2 |
1.3%
|
|
| 35 | 3 |
2%
|
|
| 36 | 1 |
0.7%
|
|
| 38 | 1 |
0.7%
|
|
| 40 | 11 |
7.3%
|
|
| 42 | 1 |
0.7%
|
|
| 43 | 2 |
1.3%
|
|
| 45 | 2 |
1.3%
|
|
| 48 | 1 |
0.7%
|
|
| 50 | 10 |
6.7%
|
|
| 52 | 1 |
0.7%
|
|
| 55 | 2 |
1.3%
|