| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 1 | One year or less | 0 |
0%
|
| 3 | 2 |
0.8%
|
|
| 4 | 2 |
0.8%
|
|
| 6 | 1 |
0.4%
|
|
| 8 | 1 |
0.4%
|
|
| 9 | 2 |
0.8%
|
|
| 10 | 9 |
3.7%
|
|
| 12 | 5 |
2%
|
|
| 13 | 2 |
0.8%
|
|
| 14 | 1 |
0.4%
|
|
| 15 | 6 |
2.4%
|
|
| 16 | 1 |
0.4%
|
|
| 17 | 2 |
0.8%
|
|
| 18 | 2 |
0.8%
|
|
| 19 | 1 |
0.4%
|
|
| 20 | 20 |
8.1%
|
|
| 21 | 2 |
0.8%
|
|
| 22 | 2 |
0.8%
|
|
| 23 | 1 |
0.4%
|
|
| 24 | 5 |
2%
|
|
| 25 | 14 |
5.7%
|
|
| 26 | 6 |
2.4%
|
|
| 27 | 4 |
1.6%
|
|
| 28 | 7 |
2.8%
|
|
| 29 | 2 |
0.8%
|
|
| 30 | 22 |
8.9%
|
|
| 31 | 4 |
1.6%
|
|
| 32 | 5 |
2%
|
|
| 33 | 4 |
1.6%
|
|
| 34 | 3 |
1.2%
|
|
| 35 | 25 |
10.2%
|
|
| 36 | 4 |
1.6%
|
|
| 37 | 4 |
1.6%
|
|
| 38 | 6 |
2.4%
|
|
| 39 | 4 |
1.6%
|
|
| 40 | 33 |
13.4%
|
|
| 42 | 2 |
0.8%
|
|
| 43 | 2 |
0.8%
|
|
| 44 | 1 |
0.4%
|
|
| 45 | 9 |
3.7%
|
|
| 47 | 2 |
0.8%
|
|
| 49 | 2 |
0.8%
|
|
| 50 | 9 |
3.7%
|
|
| 52 | 2 |
0.8%
|
|
| 59 | 1 |
0.4%
|
|
| 60 | 2 |
0.8%
|