| Value | Category | 
|---|---|
| 1 | My own copy which i personally bought | 
| 2 | My own copy which i personally subscribe to | 
| 3 | A copy bought by another household member | 
| 4 | A copy subscribed to by another household member | 
| 5 | A relative's or friend's copy | 
| 6 | An office or work copy | 
| 7 | Other |