| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
1.7%
|
| 1 | One year or less | 19 |
1.4%
|
| 2 | 46 |
3.5%
|
|
| 3 | 96 |
7.3%
|
|
| 4 | 77 |
5.8%
|
|
| 5 | 171 |
12.9%
|
|
| 6 | 81 |
6.1%
|
|
| 7 | 38 |
2.9%
|
|
| 8 | 55 |
4.2%
|
|
| 9 | 23 |
1.7%
|
|
| 10 | 128 |
9.7%
|
|
| 11 | 20 |
1.5%
|
|
| 12 | 83 |
6.3%
|
|
| 13 | 41 |
3.1%
|
|
| 14 | 24 |
1.8%
|
|
| 15 | 138 |
10.4%
|
|
| 16 | 40 |
3%
|
|
| 17 | 13 |
1%
|
|
| 18 | 25 |
1.9%
|
|
| 19 | 3 |
0.2%
|
|
| 20 | 77 |
5.8%
|
|
| 21 | 3 |
0.2%
|
|
| 22 | 3 |
0.2%
|
|
| 23 | 3 |
0.2%
|
|
| 24 | 3 |
0.2%
|
|
| 25 | 34 |
2.6%
|
|
| 26 | 2 |
0.2%
|
|
| 27 | 1 |
0.1%
|
|
| 28 | 2 |
0.2%
|
|
| 30 | 33 |
2.5%
|
|
| 35 | 9 |
0.7%
|
|
| 40 | 4 |
0.3%
|
|
| 43 | 2 |
0.2%
|
|
| 44 | 1 |
0.1%
|
|
| 45 | 1 |
0.1%
|