| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 3 months | 3991 |
79%
|
| 2 | Between 3 months and a year ago | 39 |
0.8%
|
| 3 | More than a year ago | 139 |
2.8%
|
| 4 | Never used it | 882 |
17.5%
|