| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 60 |
5.8%
|
| 1 | One year or less | 8 |
0.8%
|
| 2 | 4 |
0.4%
|
|
| 3 | 17 |
1.7%
|
|
| 4 | 11 |
1.1%
|
|
| 5 | 48 |
4.7%
|
|
| 6 | 12 |
1.2%
|
|
| 7 | 23 |
2.2%
|
|
| 8 | 42 |
4.1%
|
|
| 9 | 20 |
1.9%
|
|
| 10 | 106 |
10.3%
|
|
| 11 | 16 |
1.6%
|
|
| 12 | 37 |
3.6%
|
|
| 13 | 20 |
1.9%
|
|
| 14 | 19 |
1.8%
|
|
| 15 | 123 |
12%
|
|
| 16 | 27 |
2.6%
|
|
| 17 | 26 |
2.5%
|
|
| 18 | 44 |
4.3%
|
|
| 19 | 19 |
1.8%
|
|
| 20 | 126 |
12.3%
|
|
| 21 | 16 |
1.6%
|
|
| 22 | 29 |
2.8%
|
|
| 23 | 15 |
1.5%
|
|
| 24 | 8 |
0.8%
|
|
| 25 | 51 |
5%
|
|
| 26 | 7 |
0.7%
|
|
| 27 | 4 |
0.4%
|
|
| 28 | 11 |
1.1%
|
|
| 29 | 4 |
0.4%
|
|
| 30 | 39 |
3.8%
|
|
| 31 | 1 |
0.1%
|
|
| 32 | 6 |
0.6%
|
|
| 33 | 7 |
0.7%
|
|
| 34 | 1 |
0.1%
|
|
| 35 | 7 |
0.7%
|
|
| 36 | 3 |
0.3%
|
|
| 37 | 1 |
0.1%
|
|
| 40 | 5 |
0.5%
|
|
| 43 | 1 |
0.1%
|
|
| 45 | 3 |
0.3%
|
|
| 47 | 1 |
0.1%
|