| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 4 |
0.2%
|
| 0 | Less than 1 month | 45 |
2.1%
|
| 1 | 16 |
0.7%
|
|
| 2 | 80 |
3.7%
|
|
| 3 | 205 |
9.6%
|
|
| 4 | 144 |
6.7%
|
|
| 5 | 94 |
4.4%
|
|
| 6 | 1478 |
69.2%
|
|
| 7 | 60 |
2.8%
|
|
| 8 | 6 |
0.3%
|
|
| 12 | 3 |
0.1%
|