| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. PURCHASED BEFORE 2011 | 90 |
88.2%
|
| 2 | 2. PURCHASED AFTER 2011 | 12 |
11.8%
|
| Sysmiss | .don't know | 0 | |
| Sysmiss | .qre refused | 0 | |
| Sysmiss | .refusal | 0 | |
| Sysmiss | .skip | 0 | |
| Sysmiss | .x. censored | 0 | |
| Sysmiss | 1332 |