| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes, regularly | 11 |
1.7%
|
| 2 | Yes, irregularly | 11 |
1.7%
|
| 3 | Yes, regularly & irregularly | 1 |
0.2%
|
| 4 | No | 624 |
95.6%
|
| 98 | Don't know | 6 |
0.9%
|
| Sysmiss | 24789 |