| Value |
Category |
| 1 |
Inside closed glass can |
| 2 |
Inside open glass can |
| 3 |
Inside plastic can |
| 4 |
In the same pocket |
| 6 |
Other |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.