| Value | Category | Cases | |
|---|---|---|---|
| 1 | Within the last 3 months | 3821 |
80.1%
|
| 2 | Between 3 months and a year ago | 38 |
0.8%
|
| 3 | More than a year ago | 159 |
3.3%
|
| 4 | Never used it | 755 |
15.8%
|