| Value | Category | Cases | |
|---|---|---|---|
| 1 | within the past year | 204 |
30.6%
|
| 2 | within the past 2 years | 159 |
23.8%
|
| 3 | within the past 3 years | 124 |
18.6%
|
| 4 | within the past 5 years | 175 |
26.2%
|
| 5 | 5 or more years ago | 1 |
0.1%
|
| 77 | don't know | 4 |
0.6%
|
| Sysmiss | 1101 |