| Value | Category | Cases | |
|---|---|---|---|
| 1 | Up to three months ago | 5 |
0.9%
|
| 2 | Between three and six months ago | 15 |
2.6%
|
| 3 | Between 6 months and a year ago | 27 |
4.7%
|
| 4 | Over a year ago, but less than 2 years ago | 53 |
9.3%
|
| 5 | 2 years or more ago but less than 5 years ago | 229 |
40%
|
| 6 | 5 years ago or more | 136 |
23.8%
|
| 7 | Don?t know/Can?t remember (DON?T READ) | 107 |
18.7%
|
| Sysmiss | 11908 |