| Value | Category | Cases | |
|---|---|---|---|
| -1 | 166 |
29.2%
|
|
| 1 | I Paid (specify amount) | 237 |
41.7%
|
| 2 | It was free | 117 |
20.6%
|
| 3 | I Don't Know | 48 |
8.5%
|
| Sysmiss | 263 |