| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 104 |
6.6%
|
| 1 | One year or less | 78 |
5%
|
| 2 | 31 |
2%
|
|
| 3 | 65 |
4.1%
|
|
| 4 | 77 |
4.9%
|
|
| 5 | 136 |
8.6%
|
|
| 6 | 97 |
6.2%
|
|
| 7 | 84 |
5.3%
|
|
| 8 | 99 |
6.3%
|
|
| 9 | 60 |
3.8%
|
|
| 10 | 156 |
9.9%
|
|
| 11 | 13 |
0.8%
|
|
| 12 | 67 |
4.3%
|
|
| 13 | 29 |
1.8%
|
|
| 14 | 21 |
1.3%
|
|
| 15 | 105 |
6.7%
|
|
| 16 | 19 |
1.2%
|
|
| 17 | 12 |
0.8%
|
|
| 18 | 33 |
2.1%
|
|
| 19 | 11 |
0.7%
|
|
| 20 | 94 |
6%
|
|
| 21 | 7 |
0.4%
|
|
| 22 | 22 |
1.4%
|
|
| 23 | 9 |
0.6%
|
|
| 24 | 1 |
0.1%
|
|
| 25 | 49 |
3.1%
|
|
| 26 | 5 |
0.3%
|
|
| 27 | 4 |
0.3%
|
|
| 28 | 5 |
0.3%
|
|
| 29 | 2 |
0.1%
|
|
| 30 | 42 |
2.7%
|
|
| 32 | 1 |
0.1%
|
|
| 35 | 7 |
0.4%
|
|
| 36 | 1 |
0.1%
|
|
| 37 | 1 |
0.1%
|
|
| 38 | 2 |
0.1%
|
|
| 40 | 16 |
1%
|
|
| 42 | 1 |
0.1%
|
|
| 45 | 2 |
0.1%
|
|
| 50 | 5 |
0.3%
|