| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| 1 | One year or less | 1 |
0.3%
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 4 | 2 |
0.7%
|
|
| 5 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 8 | 2 |
0.7%
|
|
| 9 | 1 |
0.3%
|
|
| 10 | 12 |
3.9%
|
|
| 11 | 2 |
0.7%
|
|
| 12 | 3 |
1%
|
|
| 13 | 1 |
0.3%
|
|
| 14 | 5 |
1.6%
|
|
| 15 | 21 |
6.9%
|
|
| 16 | 4 |
1.3%
|
|
| 18 | 8 |
2.6%
|
|
| 19 | 1 |
0.3%
|
|
| 20 | 56 |
18.4%
|
|
| 21 | 2 |
0.7%
|
|
| 22 | 3 |
1%
|
|
| 23 | 6 |
2%
|
|
| 24 | 3 |
1%
|
|
| 25 | 34 |
11.1%
|
|
| 26 | 4 |
1.3%
|
|
| 27 | 6 |
2%
|
|
| 28 | 6 |
2%
|
|
| 29 | 2 |
0.7%
|
|
| 30 | 64 |
21%
|
|
| 31 | 3 |
1%
|
|
| 32 | 4 |
1.3%
|
|
| 33 | 5 |
1.6%
|
|
| 34 | 2 |
0.7%
|
|
| 35 | 16 |
5.2%
|
|
| 36 | 1 |
0.3%
|
|
| 37 | 1 |
0.3%
|
|
| 38 | 1 |
0.3%
|
|
| 40 | 9 |
3%
|
|
| 41 | 1 |
0.3%
|
|
| 45 | 1 |
0.3%
|
|
| 48 | 1 |
0.3%
|
|
| 50 | 3 |
1%
|
|
| 54 | 1 |
0.3%
|
|
| 55 | 1 |
0.3%
|
|
| 61 | 1 |
0.3%
|