| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
5.9%
|
| 1 | One year or less | 1 |
0.7%
|
| 3 | 1 |
0.7%
|
|
| 4 | 2 |
1.3%
|
|
| 10 | 10 |
6.5%
|
|
| 15 | 10 |
6.5%
|
|
| 16 | 2 |
1.3%
|
|
| 17 | 2 |
1.3%
|
|
| 18 | 2 |
1.3%
|
|
| 19 | 1 |
0.7%
|
|
| 20 | 22 |
14.4%
|
|
| 23 | 3 |
2%
|
|
| 24 | 4 |
2.6%
|
|
| 25 | 15 |
9.8%
|
|
| 26 | 2 |
1.3%
|
|
| 27 | 6 |
3.9%
|
|
| 28 | 1 |
0.7%
|
|
| 30 | 19 |
12.4%
|
|
| 34 | 2 |
1.3%
|
|
| 35 | 10 |
6.5%
|
|
| 37 | 2 |
1.3%
|
|
| 38 | 1 |
0.7%
|
|
| 39 | 1 |
0.7%
|
|
| 40 | 10 |
6.5%
|
|
| 42 | 1 |
0.7%
|
|
| 43 | 2 |
1.3%
|
|
| 45 | 1 |
0.7%
|
|
| 47 | 2 |
1.3%
|
|
| 50 | 3 |
2%
|
|
| 51 | 1 |
0.7%
|
|
| 52 | 1 |
0.7%
|
|
| 60 | 1 |
0.7%
|
|
| 65 | 1 |
0.7%
|
|
| 68 | 1 |
0.7%
|
|
| 70 | 1 |
0.7%
|