| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 1994 |
51%
|
| 2 | 1-4 hours a year | 370 |
9.5%
|
| 3 | 5-19 hours year | 562 |
14.4%
|
| 4 | 20-49 hours a year | 449 |
11.5%
|
| 5 | 50 or more hours a year | 534 |
13.7%
|
| 7 | N/A | 6215 | |
| 8 | Invalid | 4 | |
| 9 | Missing | 219 |