| Value | Category | Cases | |
|---|---|---|---|
| 1 | Turned upside down AND the message at the back was read | 895 |
17.9%
|
| 2 | Turned upside down BUT the message at the back was NOT read | 1636 |
32.7%
|
| 3 | NOT turned upside down AND the message at the back was NOT read | 1917 |
38.3%
|
| Missing value | 559 |
11.2%
|